Login issue = Admin Panel

Hello Community,

I just finished the installation successful without any issues.

Of course I set admin login credentials as mentioned in the docs.

If I try to login, i receive no error message, but also i dont get forwarded. Quick reload of the page without any action
Also no error in google console.

If i test it with some random username and apssword, I receive the message "inavild" login.
So something is wrong over here.

Any ideas?