How to become a catalyst?

I tried both ways logged in, logged out. Wenn I click the “Buy”-Button on the Catalyst-Pricing-Box I will be forwarded to a login screen, that returns an error when I enter my credentials. Using the same credentials for login into this forum works fine. Any suggestions?

the credentials for the forum and for the main obsidian account are different.

thanks for the hint. thought it would be the same account. have a nice weekend