Before you proceed, create a new user account, log in to that new user's account, and see if the panel is working correctly.
If it works correctly for the new account, it's likely that have a problem with your panel's user configuration - resetting the settings should help.
You can reset the panel configuration by removing the following folders:
BACKUP these files/folders before deleting.
I also don't recommend that you use third-party packages/builds for the panel, keep everything to defaults.