The Critical System Protection Server rejects events and the agents do no upload additional logs.
The error found in the manager console will be similar to:
MCOM,6,2013-09-19 15:58:28.836 Z-0400,W,50,IS,bae42b464f01aa0dd7f20d618c6b120b,10213,,,,,HttpsLogDestination::writeLog,,F,,Communication,,,,,"SCSP Error when trying to send a log. Error Code 300 : Error Message : "1;SQL Code: 0&1;crlf1;&1;crlf2;Data truncation&1;crlf2;"1;"
This issue is resolved in Data Center Security version 6.0 (Critical System Protection is renamed Data Center Security in verion 6).
SCSP 5.2.9 MP4 and earlier