just to be sure, check on the master terminal or all terminals for that matter, and make sure there is not a dated sub for that date, if it is then move it to the server then grind the data, though if no one was there to make it master then there probably is not going to be any dated subs.
Is there a trans.log in this dated sub?, you may need to simply regrind the data to repopulate the grind dbf files.