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help me please

[ERROR] ReceiveCallback: System.InvalidOperationException: Connection must be valid and open. em MySql.Data.MySqlClient.MySqlCommand.Throw(Exception ex) em...

me ajude por favor

https://imgur.com/a/2cOvc12

[ERROR] ReceiveCallback: System.InvalidOperationException: Connection must be valid and open. em...

eu tenho esses erros

https://imgbb.com/FwBP9CP
https://imgbb.com/FwBP9CP
https://imgbb.com/FwBP9CP

abra o erro QuickLaunch "execute DMLauncher.exe"
https://imgur.com/a/hpXaTnR