I get this Error when I try to submit a new subscriber…. Provider is domainbox / Germany .
On Diagnostic Panel I see this: Scheduler execution interval mean 1864 seconds (KO) …. ?
Any Ideas what to do?
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Thank You Volker