Built fail

I need to extend the language tool, for this purpose I have developed the rules in my own project using the language tool API but now I want to deploy things on the server for this reason I cloned the repository of the language tool but the built is failing by the following warning.

“Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project languagetool-server: There are test failures.”

Can anyone please help me with this, how to fix it and run the build successfully?