Lync Server 2013 report processing stopped

Hi there,
Lync Server 2013 gives me this message and I don’t really know what it means. I know that is not working anymore with all functions and I cannot start them. Does anyone have a solution ? What I did wrong and what is limiting the capacity ?
Thank you !

Lync Server 2013
Monitoring Dashboard
Report processing stopped because too many rows in summary tables are missing in the call detail recording the LcsCDR database.
