An error occurred while attempting to send a message to the message queue. The message was dropped. Message queue path: '%1' ...

An error occurred while attempting to send a message to the message queue. The message was dropped.

Message queue path: '%1' Message queue error code: '%2'
Cause: An unexpected error occurred while attempting to send a message to the message queue.
Resolution:
Make sure the MSMQ service is started, the message queue still exists, the queue is not full, and there is enough free disk space.