A few days ago I installed an unofficial plugin sonar-swift.
After restarting Sonar, the logs have thrown an incompatibility issue for the plugin (my SonarQube is old, version 5.4).
I deleted the plugin from the location: $SONARQUBE_HOME/extensions/plugin.
Since then, the application starts normally, but Sonar has stopped logging messages (the last log messages are from a few days ago).
Can anyone guess what could have happened? How to fix it?