404 code when trying to manage Integrations

I am working on a project. I installed an integration a week ago. Since I have had nothing but trouble. Uknowingly that integration is the one causing the issues. Now, when I click manage, it takes me to a 404 error page. So, my fix is there should be an add and delete integration button for integrations. Not just a manage button. IF Vercel had an “add and delete” button for integrations that would override the “integration management” on your system, this problem would be null and void.

Which integration is it?