When trying to upload a logo, I get an error. Anyone know how to solve this?
This request contains an invalid authentication information.
This might happen in the following situations:
- You left the editor open in another window/tab and logged off and on again
- Your authentication token expired after a long period of inactivity
- Somebody tried to perform a CSRF attack
If you are sure that none of these situations apply in your case, you might have found a bug. We are sorry about that, please report it on XWiki JIRA
Do you want to resend the request? If unsure, say No.