During game when I was rebuild some areas in my base I destroyed power unit for trains. Now all electrical trains wants to be charged with coal. Old trains have now 150 coal inside and new trains are empty. Even when I build again power unit then trains doesnt wanto to be charge. How to fix that?

Sounds like quite a few things went wrong.

I've pushed a bunch of changes in an update that should fix all the coal issues.

However, I'm not sure about the trains not charging when they're new. That part is very odd. The mod update should cause some things internally to be reset so that might fix it.