[orion]

What game version are you using? Is it EE?

I'm using BGT.
I was able to solve the problem (at least for the installation).
Added an alter_effect.tpa file with the definition of DELETE_EFFECT (from the ascension mod, but I think that it should be included in Weidu by default so probably not necessary) and changed in items.tpa

ACTION_IF GAME_IS ~bg2 tob bgt~ THEN BEGIN
LPF DELETE_EFFECT INT_VAR match_opcode = 319 END
END

for

PATCH_IF GAME_IS ~bg2 tob bgt~ THEN BEGIN
LPF DELETE_EFFECT INT_VAR match_opcode = 319 END
END

It solved the parsing error.
It will be nice if you can add the fix for those who use BGT for BWP installations.
Thanks and sorry for the inconvenience!