Order Entry Rebuild Log Error: Invalid Ship to Address Link

SOLVED

During our month end module closing we are receiving an "Invalid Ship to Address Link" error (from the OEREBLD.LOG); however, at the bottom of the log it does say "Rebuild Complete". Can someone walk me through what may have triggered this? We recently upgraded from Sage BusinessWorks 2018 to 2019 and haven't seen this error before.

Thanks!