Do you have any idea, what can be the cause based on this issue? Faboslav/friends-and-foes#191
Is Canary Class Analysis thing calling my classes on bad environment?

I don't believe you're at fault for this. Looking over the report, log, source of your mod and canary it looks like some other mod overrides Entity#collidesWith and is attempting to use PlayerInfo somewhere in it without checking the side. At least that's my best guess.

This is likely a symptom of all 3 mods being present at the same time.

Since this is not an issue with neruina itself as it handled it in an expected manner, I'm closing this