TLVLZERO, Transaction is not in progress

Compile Time/Run Time Error: This indicates that a TCOMMIT, TROLLBACK, or TRESTART command attempted to change the state of the current transaction; however, a transaction was not in progress.

Action: Look for missing TSTARTs, extra TCOMMITs or TROLLBACKs, or an unanticipated flow of control; conditionalize the command on $TLEVEL, if appropriate.