New Exchange Error

{
    "title": "ErrorException",
    "type": "ErrorException",
    "code": 500,
    "message": "Undefined property: stdClass::$ec_reason",
    "file": "/var/www/html/opoapi/app/Controllers/Api/ExchangeController.php",
    "line": 19,
    "trace": [
        {
            "file": "/var/www/html/opoapi/app/Controllers/Api/ExchangeController.php",
            "line": 19,
            "function": "errorHandler",
            "class": "CodeIgniter\\Debug\\Exceptions",
            "type": "->",
            "args": [
                8,
                "Undefined property: stdClass::$ec_reason",
                "/var/www/html/opoapi/app/Controllers/Api/ExchangeController.php",
                19,
                {
                    "cart_id": "1",
                    "data": {
                        "return_reason": "Isn't appropriate with my heart !!!",
                        "eci_id": [
                            5
                        ]
                    },
                    "now": "2020-11-21 00:29:00",
                    "db": {
                        "DBDriver": "MySQLi",
                        "deleteHack": true,
                        "escapeChar": "`",
                        "mysqli": {
                            "affected_rows": null,
                            "client_info": null,
                            "client_version": null,
                            "connect_errno": null,
                            "connect_error": null,
                            "errno": null,
                            "error": null,
                            "error_list": null,
                            "field_count": null,
                            "host_info": null,
                            "info": null,
                            "insert_id": null,
                            "server_info": null,
                            "server_version": null,
                            "stat": null,
                            "sqlstate": null,
                            "protocol_version": null,
                            "thread_id": null,
                            "warning_count": null
                        },
                        "connID": {
                            "affected_rows": null,
                            "client_info": null,
                            "client_version": null,
                            "connect_errno": null,
                            "connect_error": null,
                            "errno": null,
                            "error": null,
                            "error_list": null,
                            "field_count": null,
                            "host_info": null,
                            "info": null,
                            "insert_id": null,
                            "server_info": null,
                            "server_version": null,
                            "stat": null,
                            "sqlstate": null,
                            "protocol_version": null,
                            "thread_id": null,
                            "warning_count": null
                        },
                        "resultID": false,
                        "protectIdentifiers": true,
                        "likeEscapeStr": " ESCAPE '%s' ",
                        "likeEscapeChar": "!",
                        "dataCache": [],
                        "transEnabled": true,
                        "transStrict": true
                    }
                }
            ]
        },
        {
            "file": "/var/www/html/opoapi/vendor/codeigniter4/framework/system/CodeIgniter.php",
            "line": 918,
            "function": "exchangeGoods",
            "class": "App\\Controllers\\Api\\ExchangeController",
            "type": "->",
            "args": [
                "1"
            ]
        },
        {
            "file": "/var/www/html/opoapi/vendor/codeigniter4/framework/system/CodeIgniter.php",
            "line": 404,
            "function": "runController",
            "class": "CodeIgniter\\CodeIgniter",
            "type": "->",
            "args": [
                {
                    "ec": {
                        "pager": null
                    },
                    "eci": {
                        "pager": null
                    }
                }
            ]
        },
        {
            "file": "/var/www/html/opoapi/vendor/codeigniter4/framework/system/CodeIgniter.php",
            "line": 312,
            "function": "handleRequest",
            "class": "CodeIgniter\\CodeIgniter",
            "type": "->",
            "args": [
                null,
                {
                    "handler": "file",
                    "backupHandler": "dummy",
                    "storePath": "/var/www/html/opoapi/writable/cache/",
                    "cacheQueryString": false,
                    "prefix": "",
                    "memcached": {
                        "host": "127.0.0.1",
                        "port": 11211,
                        "weight": 1,
                        "raw": false
                    },
                    "redis": {
                        "host": "127.0.0.1",
                        "password": null,
                        "port": 6379,
                        "timeout": 0,
                        "database": 0
                    },
                    "validHandlers": {
                        "dummy": "CodeIgniter\\Cache\\Handlers\\DummyHandler",
                        "file": "CodeIgniter\\Cache\\Handlers\\FileHandler",
                        "memcached": "CodeIgniter\\Cache\\Handlers\\MemcachedHandler",
                        "predis": "CodeIgniter\\Cache\\Handlers\\PredisHandler",
                        "redis": "CodeIgniter\\Cache\\Handlers\\RedisHandler",
                        "wincache": "CodeIgniter\\Cache\\Handlers\\WincacheHandler"
                    }
                },
                false
            ]
        },
        {
            "file": "/var/www/html/opoapi/public/index.php",
            "line": 52,
            "function": "run",
            "class": "CodeIgniter\\CodeIgniter",
            "type": "->",
            "args": []
        }
    ]
}