@SweetP Hello Russel, many thanks, great, that did the trick! There was a Cookies.binaryCookies file, but it had a corrupt ending. I deleted all ookies.binaryCookies versions and all is working! Thanks for the quick help. Kind regards, A

Same problem here, tried full uninstall / run maintenance tools / reboots. Cookie v6.0.12 on Catalina 10.15.4.