Don't uninstall Tunnelblick to try to fix a problem. You should uninstall only if you no longer want to use Tunnelblick. Uninstalling and reinstalling Tunnelblick almost never fixes a problem. (Simply restarting your computer might help.)
Don't uninstall Tunnelblick before updating or reinstalling. You should uninstall only if you no longer want to use Tunnelblick.
To Use the Uninstaller Included in Tunnelblick
Step 1: Go to Applications - Right Click on Tunnelblick and click Move to Bin.
Step 2: You will be prompted to enter the username and password for the Mac to complete the removal.