Cannot Compile with extension, Java runtime versions don't match

trying to build an apk with an extension is not working. The error is that there is a mismatch between java runtime 52 and java runtime version 55.

Has anyone else encountered this?

and the extension is ?

It may be that the extension in question isn't intended for use in App Inventor. App Inventor is built with Java 8 and based on the version numbers the extension was built with Java 11.

This tic tac toe extension.

Maybe @Horizon can help here.....

Difficult for anyone else to test because it is a paid extension