The game won't start. Error NullReferenceException

[Slicker 0]

Help please. This is not the first time such an error occurs. There is only one solution - a new game. This is bad. There were no unexpected power offs, and the game exits are normal. Version A 19 and 19.1 are the same. Installed mod Compopack

[q123 38]

This may be a Compopack error.

If your world was generated using an older version of Compopack it won't help to start a new save game.

Sounds like you'll need Hotfix 02 (read the red text at beginning):

Generate a new world with latest Compopack may help here

 

[Slicker 0]

Yes I have the latest version of hotfixes installed. 

[Jugginator 279]

Looks like a Nitrogen/compopack issues and not a game issue, may be better off in the Mods section. Also, a log file is needed with null errors since they could mean any one of trillion things.