For several weeks now, it has been impossible to log in via the macOS app. Every time I log in correctly, I get the following error message:
I have already, created new accounts, deleted browser caches and cookies etc.
The problem is known and has been reported several times.
Why hasn’t this bug been fixed yet?
I have already received about 4 versions and all of them have this bug and I am not the only one with this issue.
For me this issue seems to be resolved with v1.2024.227.
Thanks! 
i am having the same problem and mi chatgpt client is in 1,2024.317 versión.
I get the exact same error message and nothing helps since weeks. I tried every solution I could find in the forum and everything from the help site of OpenAI. It´s really frustrating. The chat with OpenAI support is not helping at all. Does anyone know how to fix this?