We are using Cloudflare to host our domain, but currently we could not find the Cloudflare login account and password. Since from the very beginning, Cloudflare is registered by our ex-coworker. We have tried 2 login info below, but in vain.
What feature, service or problem is this related to?
Your domain is registered with Cloudflare. If you don’t have access to that account, you will need to open a registrar ticket and discuss with support which options you have to access that account. You’ll need to provide proof of purchase, ownership, and so on, but only support can tell you the details. The community cannot help with that.