Execution failed for task ':compileJava'.

I was making something and I didn't sync with github, and then i went to school and when i was at school my nephew made some changes and sync them and after i cam back home i sync my changes and now I get these error messages. I already tried the regenerate code and build button, cleared the caches in <username>\.mcreator\gradle and some other things I fond online and it still didn't work. does anyone now how to fix it?

sorry if my english is not that good