[SL] Upgrading database error: drop trigger del_recurring ON oe

[Prem P. <pre...@gm...>]

Got this error message when logging into the upgraded SL.

Upgrading to Version 2.8.8 ...
Error!
drop trigger del_recurring ON oe
ERROR: trigger "del_recurring" for table "oe" does not exist

What does it mean?

Anyway, after that, I had to unlock the program two times, and after that it
all functions wel.
Well..at least I hope so, or would the error message have some permanent
impact

Any ideas?
Thanks
Prem