I have upgraded SonarQube enterprise edition from 8.7 to 8.8 and though it is non-LTS versions upgrade, it still displays the below error message:
SonarQube is under maintenance
While waiting, you might want to investigate new plugins to extend the current functionality.
If you are an administrator and have no idea why this message is being shown, you should read the upgrade guide.
Please suggest on how to fix this issue.