The Merge Agent failed to insert a batch of rows because of the following error: %1. When troubleshooting, use SQL Profiler ...

The Merge Agent failed to insert a batch of rows because of the following error: %1. When troubleshooting, use SQL Profiler or restart the agent with a higher value for -HistoryVerboseLevel and check the output log file for errors. Correct any database engine conditions that may be causing internal replication stored procedures to fail.