The instructions to fix were already posted...
Either go back to the default style or you need to add the security tokens manually as it says to in this thread:
https://vborg.vbsupport.ru/showthread.php?t=177013
Be warned there isn't a "quick fix" if you're missing a lot of security tokens you'll be making a lot of edits. It's probably better you get a new style fully compatible with the version you are using.