Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project MagicAPI: Compilation failure.
This error happens when i try to compile the plugin.
edit: those two more errors were a mistake but this error is still weird.

As far as I know those are all very common maven plugins available in Central. I don't know why you'd be having this issue.

And there is no repo for com.garbagemule Mobarena. and the version provided there is old. I just wanted to hook MobArena into Magic but the problem is that the version is too old so it doesnt hook up and i cant compile your plugin (with the newer version of mobarena depency changed in the pom.xml) by myself because of the errors.
Could you just update the version of the MobArena in the pom.xml on the Magic folder (If you have time for that)

The api is not compilable and the mobarena version is too old on the pom.xml of the Magic folder.