QUESTIONs:
What does "Selection.QueryTable.Refresh BackgroundQuery:=False" mean?

it causes previously set querytable (within "Raw Data" sheet) to refresh
(connection to database based on query definition, retrieving data )

What does Range(BH33) mean?

the place in sheet "Raw Data" where querytable begins

How might I fix this busted macro?


IMHO macro is not a problem in this case - maybe you cleared contents (part
of sheet area) of "Raw Data" manually so querytable is not existing anymore
in indicated range "BH33" or maybe conection ( or database statement ) to
particular database fails.
If you have a copy of this file - check it out - maybe it will work.