Oh no! Sorry for the trouble, @Christoph. This kind of issue is usually caused by the internet browser. One of the following is likely to resolve your issue, or help us to diagnose it!
- Test Asana on another supported browser. If it works in Firefox but not in Chrome, for example, this indicates that the problem may be with Chrome, and one of the steps below may help fix it: https://asana.com/guide/help/faq/connectivity#gl-browsers
- Disable browser extensions while using Asana. You can test this by using an incognito or private browsing window. This disables browser extensions by default. If it works in Incognito/private mode, you may need to try switching off some of your extensions to see if any are causing conflicts with Asana: https://asana.com/guide/help/faq/connectivity#gl-troubleshooting
- Update your browser to the latest version.
- Clear your browser’s cache.
If you’ve already tried some of these, please still try the others. If your issue is not resolved, please let me know and we can troubleshoot further.
Looking forward to your reply!