I fixed the bug myself. Apparently the text box in the main.tpl was in the wrong position and was therefore covered by the button. That was at least one way to fix the problem.
Oh wait Now it worked. I deleted the hash value. Then in the template wp_set_password (‘123456’, 1); entered. So far I’ve had that too. But now I have called up the page again, then deleted the line from functions.php and then the login worked.
Thank you so much!
It’s a great idea. I didn’t think of that yet. I’ve tried it now, but unfortunately it doesn’t work either.
