The class named 'UnityEngine.PostProcessing.GrainModel' is not derived from MonoBehaviour or ScriptableObject!                                                                                                                                                                (Filename:  Line: 199)

The referenced script (PlaybackOptions) on this Behaviour is missing!
(Filename:  Line: 199)

The class named 'UnityEngine.PostProcessing.GrainModel' is not derived from MonoBehaviour or ScriptableObject!
(Filename:  Line: 199)

The referenced script (classicnoise3D) on this Behaviour is missing!
(Filename:  Line: 199)

The file '/home/nagrywki/stafftestingzabszk/SCPSL_Data/level4' is corrupted! Remove it and launch unity again!
[Position out of bounds!]
(Filename:  Line: 220)

Caught fatal signal - signo:5 code:-6 errno:0 addr:0x3ec00007328
OnApplicationQuit: stopped server
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/libsteam_api64
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/libsteam_api64.so
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/steam_api64
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/libsteam_api64
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/libsteam_api64.so
Fallback handler could not load library /home/nagrywki/stafftestingzabszk/SCPSL_Data/Mono/libsteam_api64
Obtained 15 stack frames.
#0  0x007f3392f227d1 in DebugStringToFile(DebugStringToFileData const&)
#1  0x007f339294f772 in CachedReader::OutOfBoundsError(unsigned long, unsigned long)
#2  0x007f339294f95f in CachedReader::UpdateReadCache(void*, unsigned long)
#3  0x007f3392a4b664 in void TransferScriptingObject<StreamedBinaryRead, false>(StreamedBinaryRead&, ScriptingObjectPtr, ScriptingClassPtr, SerializationCache::Data*&, ManagedReferencesRegistry*)
#4  0x007f3392a77646 in SerializableManagedRefTransfer::Transfer(Object*, SerializableManagedRef&, StreamedBinaryRead&, bool)
#5  0x007f3392a86892 in SerializedFile::ReadObject(long, ObjectCreationMode, bool, TypeTree const**, bool*, Object&)
#6  0x007f3392a7aaf8 in PersistentManager::ReadAndActivateObjectThreaded(int, SerializedObjectIdentifier const&, SerializedFile*, bool, bool, PersistentManager::LockFlags)
#7  0x007f3392a7b5e4 in PersistentManager::LoadFileCompletelyThreaded(core::basic_string<char, core::StringStorageDefault<char> > const&, long*, int*, int, PersistentManager::LoadFlags, LoadProgress&, PersistentManager::LockFlags)
#8  0x007f3392944147 in LoadSceneOperation::Perform()
#9  0x007f33929460f7 in PreloadManager::ProcessSingleOperation()
#10 0x007f3392945f4f in PreloadManager::Run()
#11 0x007f3392945ea6 in PreloadManager::Run(void*)
#12 0x007f33929be8aa in Thread::RunThreadWrapper(void*)
#13 0x007f3391e43fa3 in start_thread
#14 0x007f3391d744cf in clone