I have the error Exception in thread "main" java.lang.UnsupportedClassVersionError: com/rarchives/ripme/App has been compiled by a more recent version of the Java Runtime (class file version 61.0), ...

Error: LinkageError occurred while loading main class net.minecraft.bundler.Main java.lang.UnsupportedClassVersionError: net/minecraft/bundler/Main has been compiled by a more recent version of the ...