Just looking at the the !Arithmetic overflow
line of that error message and the one below, my guess is that you are using some kind of table markers in a slightly unusual way, and it thinks it needs to make a table with no columns, and thus divides by 0.
As the bottom line says \p
, my guess would be that you have a \p
soon after the start of a table. The l.505
says that it met the error somewhere near line 505 of your USFM file, but sometimes it gets it wrong.