BTS0043W UNABLE TO LOAD ERROR MESSAGE OUTPUT DESCRIPTION.

Explanation
 Block fetch has failed for the requested message
output description or device output description.

System action
 The output message is discarded and IMS Batch Terminal Simulator
continues processing.

User response
 Verify that the DOF FEATURE
option agrees with
the FEAT= operand coded on the ./D or ./T command, that the correct
version of the IMS format blocks are being used, that MOD and DOF compilation
date and time match, that the IMS error default
output descriptions are in the format data set, and that no I/O error
has occurred. If necessary, rebuild the format blocks.