I recently upgraded from a self hosted version 4 version to version 6. There were no errors during the upgrade however when I log back in all my screens show a loading icon. If I go the My Queries screen I see my queries listed but if I select one I get an error message. " t seems like we encountered an error. Try refreshing this page or contact your administrator."

Any suggestions for troubleshooting this?

Got it working. by reinstalling some dependencies.

Im having the same issue… what did you do exactly to fix it

The log files indicated a version mismatch. From the shell I ran:
sudo pip install kombu==4.2.0
sudo pip install celery==4.1.1
sudo pip install redis==2.10.6

Restarted and -i t works!

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