No, there is no known error where the game would crash on entering battle. Are you sure it has something to do with these scripts?
Anyway, the error occurs in the demo you showed me, but that demo actually doesn't include any ATS script at all so I'm thinking that it's a bug with the Victory Aftermath script independent of the ATS. I will still try to fix it for you.
EDIT::
Alright, in the Victory Aftermath script, find these lines starting around line 343
case @victory_quote_type
when nil; next
when :win_quote; @win_quotes[@win_quotes.size-1] += line.to_s
when :level_quote; @level_quotes[@level_quotes.size-1] += line.to_s
when :drops_quote; @drops_quotes[@drops_quotes.size-1] += line.to_s
end
Change them to:
case @victory_quote_type
when nil; next
when :win_quote; @win_quotes[@win_quotes.size-1] += line.to_s.gsub(/\\[Nn]/, "\n")
when :level_quote; @level_quotes[@level_quotes.size-1] += line.to_s.gsub(/\\[Nn]/, "\n")
when :drops_quote; @drops_quotes[@drops_quotes.size-1] += line.to_s.gsub(/\\[Nn]/, "\n")
end
I think that should fix the problem when it's independent. So do that first.
Unfortunately, once that's fixed, then a problem with Paragraph Formatting will arise. But you can fix that by changing this line in Victory Aftermath at line 171:
HEADER_TEXT = "\e>\eC[6]%s\eC[0]\e<\n" # Always at start of messages.
Add /pf to it to turn off paragraph formatting, like so:
HEADER_TEXT = "/pf\e>\eC[6]%s\eC[0]\e<\n" # Always at start of messages.