Nothing Happens! Everything stopped!

WRITE ACCESS REVOKED in the HEROKU!

Now nothing happens! My Dashboard doesn’t work and I don’t know how to reduce the size of my table, even which table I need to drop!!

Pls help me! I need to restore my dear, usefull dashboard!

I really don’t know to restart! help me!!

If others see this thread, the solution is to upgrade Heroku from the free tier to a paid tier (recommended), or as in acaruso’s case, to clear up space: