Why dosen't this work?

/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:fill ~ ~ ~1 ~ ~-23 ~1 redstone_block},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~3 ~1 stone},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~4 ~ command_block 0 replace {Command:fill ~ ~2 ~ ~ ~-26 ~1 air}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~3 ~18.25 ~ {Block:command_block,Time:1,TileEntityData:{Command:fill ~ ~ ~-1 ~6 ~ ~1 coal_block}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~ ~-1 {Block:coal_block,Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/fill ~ ~0 ~1 ~ ~-48 ~1 redstone_block},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~3 ~1 stone},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~4 ~ command_block 0 replace {Command:fill ~ ~2 ~ ~ ~-52 ~1 air}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~3 ~-45 ~-1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:0,Inventory:[{Slot:0b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~3 ~-44 ~1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:1,Inventory:[{Slot:1b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~4 ~-43 ~-1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:2,Inventory:[{Slot:2b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~4 ~-42 ~1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:3,Inventory:[{Slot:3b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~5 ~-41 ~-1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:4,Inventory:[{Slot:4b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~5 ~-40 ~1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:5,Inventory:[{Slot:5b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~6 ~-39 ~-1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:6,Inventory:[{Slot:6b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~6 ~-38 ~1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:7,Inventory:[{Slot:7b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~7 ~-37 ~-1 command_block 0 replace {Command:/scoreboard players set @p EB 1 {SelectedItemSlot:8,Inventory:[{Slot:8b,tag:{display:{Name:"EnderBow"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~7 ~-36 ~1 command_block 0 replace {Command:scoreboard players set @e[type=}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~8 ~-35 ~-1 command_block 0 replace {Command:rrow] }},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~8 ~-34 ~1 command_block 0 replace {Command:OGD 1 {OnGround:1b}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~9 ~-33 ~-1 command_block 0 replace {Command:execute @p[score_EB_min=1] ~ ~ ~ scoreboard players reset @e EB}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~9 ~-32 ~1 command_block 0 replace {Command:give @p[score_GEB_min=1] minecraft:bow 1 0 {Unbreakable:1b,display:{Name:"EnderBow"}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~10 ~-31 ~-1 command_block 0 replace {Command:scoreboard players reset @e[score_GEB_min=1] GEB}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~10 ~-30 ~1 command_block 0 replace {Command:execute @e[score_}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~11 ~-29 ~-1 command_block 0 replace {Command:OGD_min=1] ~ ~ ~ /tp @p @e[score_}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~11 ~-28 ~1 command_block 0 replace {Command:OGD_min=1]}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~12 ~-27 ~-1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:0,Inventory:[{Slot:0b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~12 ~-26 ~1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:1,Inventory:[{Slot:1b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~13 ~-25 ~-1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:2,Inventory:[{Slot:2b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~13 ~-24 ~1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:3,Inventory:[{Slot:3b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~14 ~-23 ~-1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:4,Inventory:[{Slot:4b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~14 ~-22 ~1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:5,Inventory:[{Slot:5b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~15 ~-21 ~-1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:6,Inventory:[{Slot:6b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~15 ~-20 ~1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:7,Inventory:[{Slot:7b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~16 ~-19 ~-1 command_block 0 replace {Command:/scoreboard players set @p WT 1 {SelectedItemSlot:8,Inventory:[{Slot:8b,tag:{display:{Name:"PoisonSword"}}}]}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~16 ~-18 ~1 command_block 0 replace {Command:execute @p[score_D_min=1] ~ ~ ~ execute @p[score_WT=1] ~ ~ ~ scoreboard players add @a WT 1}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~17 ~-17 ~-1 command_block 0 replace {Command:execute @p[score_WT=2] ~ ~ ~ effect @e[type=!Player,r=5] 20 5 3 true}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~17 ~-16 ~1 command_block 0 replace {Command:/scoreboard players set @e[type=Item] GPS 1 {Item:{id:minecraft:nether_star}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~18 ~-15 ~-1 command_block 0 replace {Command:execute @e[type=Item,score_GPS_min=1] ~ ~ ~ give @p minecraft:wooden_sword 1 0 {Unbreakable:1b,display:{Name:"PoisonSword"}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~18 ~-14 ~1 command_block 0 replace {Command:execute @e[type=Item,score_GPS_min=1] ~ ~ ~ kill @e[type=Item] {Item:{id:minecraft:nether_star}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~19 ~-13 ~-1 command_block 0 replace {Command:execute @e[score_GPS_min=1] ~ ~ ~ scoreboard players reset @e GPS}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~19 ~-12 ~1 command_block 0 replace {Command:execute @p[score_HTGTW_min=1] ~ ~ ~ scoreboard players reset @e HTGTW}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/gamerule commandBlockOutput false},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add EB dummy},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add GEB stat.killEntity.Enderman},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add D stat.damageDealt },Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add WT dummy},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add GPS dummy},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard objectives add HTGTW dummy},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/tellraw @p ["",{"text":"'MoreWeapons'","color":"dark_blue","italic":"true"},{"text":" Command By:ServerMask","color":"red","insertion":"/tellraw @p","italic":"true"},{"text":"Throw a nether star to get a poison sword","color":"gold","insertion":"/tellraw @p","bold":"true","italic":"true","clickEvent":{"action":"run_command","value":"scoreboard players set @p HTGTW 1"}},{"text":" ,kill an enderman to get the EnderBow","insertion":"/tellraw @p %s","color":"yellow","bold":"true","italic":"true"}]},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:gamerule commandBlockOutput false},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"fill ~2 ~-2 ~ ~19 ~-2 ~ redstone_block"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~2 ~-1 ~-1 command_block 0 replace {Command:/fill ~ ~ ~1 ~18 ~ ~1 stone 0 replace redstone_block}"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~2 ~ ~1 command_block 0 replace {Command:/fill ~ ~ ~-1 ~18 ~ ~-1 redstone_block 0 replace stone}"},Time:1,Riding:{id:"FallingSand",Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}},Time:1,}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~ ~-1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~ ~-1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~ ~-1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~ ~-1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~ ~-1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~ ~1 {Block:coal_block,Time:1,}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:gamerule commandBlockOutput false},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"fill ~3 ~-4 ~ ~9 ~-4 ~ redstone_block"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~3 ~-3 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~6 ~0 ~1 stone 0 replace redstone_block}"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~3 ~-2 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~6 ~0 ~-1 redstone_block 0 replace stone}"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:fill ~2 ~-1 ~-2 ~10 ~-1 ~2 stained_glass 4 replace coal_block},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:fill ~3 ~ ~-1 ~9 ~3 ~1 air 0 replace coal_block},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:fill ~2 ~ ~-2 ~10 ~2 ~2 coal_block},Time:1,Riding:{id:"FallingSand",Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}