Fix compilation error

Author: Jan Boerman

ScalaLoader-Paper/src/main/java/xyz/janboerman/scalaloader/paper/ScalaPluginLoading.java

@@ -173,6 +173,8 @@ static ScalaLibraryClassLoader getOrCreateScalaLibrary(ScalaDependency scalaDepe
         }
 
         // TODO implement this function, adapt from ScalaLoaderUtils.
-        return loadOrGetScalaVersion(scalaVersion);
+//        return loadOrGetScalaVersion(scalaVersion);
+        // TODO do we want to delegate to ScalaLoader instance here? perhaps not.
+        return ScalaLoader.getInstance().loadOrGetScalaVersion(scalaVersion);
     }
 }