Mod files don't compile properly after creating a living entity

I was creating a living entity and when I finished doing it a screen showed up:  One or more of your main mod files did not compile properly and when I click regenerate code, nothing happens. I tried it multiple times using my models and built-in models of entities but nothing works. Previously I did everything the same but when 2023.1 came out now this happens. Can someone help me please solve the problem?

Here's a bug report:

https://pastebin.com/RtG18vya