User try to delete sites in the trash - it does not works.
Support delets something and get:

https://mywiki.telekom.de/display/REC20/00+-+myRTS+Wiki+%28Startseite%29
System Error
A system error has occurred — our apologies!

Please ask your Confluence administrator to create a support issue on Atlassian's support system at http://support.atlassian.com with the following information:

a description of your problem and what you were doing at the time it occurred
a copy of the error and system information found below
a copy of the application logs (if possible).
Your Confluence administrator can use the support request form to create a support ticket which will include this information.

We will respond as promptly as possible.
Thank you!

Return to site homepage...

The trash-folder lies here:
https://mywiki.telekom.de/pages/viewtrash.action?key=REC20