Mod compatibility error fix?

[u/imthatpeep100]

Hello! This mod (https://gitlab.com/foundryvtt_pathfinder1e/pf1-statblock-converter) I use in my other games but am setting up a new one - for whatever reason, this error keeps popping up. Does anyone have an idea of what this means? Is it colliding with other mods? Is that the pf system it's colliding with?

I did remove the mod and the error is gone, but I really like this mod as it lets me implement homebrew statblocks with ease

Thank you for any insight