Take a look at the item again:
Circling the parking lot, (A)
Dominique searched for an empty space close to the mall
entrance (B)
so that an afternoon thunderstorm wouldn't drench
her (C)
while she was loaded down with good buys.
You wanted to do this:
Circling the parking lot Dominique searched
for an empty space close to the mall entrance so that an afternoon thunderstorm
wouldn't drench her while she was loaded down with good buys.
Removing the comma after lot is an error. Circling the parking lot is a participle phrase. When this type of phrase introduces a main clause, you need a comma to connect the two.
You might want to review the rules.
Go back to the sentence to try again.