[11:36:51] [ForkJoinPool-1-worker-12/WARN]: Mod survivalplus uses the version 0.1.6e which isn't compatible with Loader's extended semantic version format (Could not parse version number component '6e'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version

This is intended and known. It's just a warning that doesn't affect much of anything. Thanks anyway.