Take a look at the passage again:
To keep her basset hound away from the pizza, Ana keeps the squirt bottle
close by. So that she can "draw" like a gunslinger if a dog tongue gets
too close to the delivery box.
You chose to connect the subordinate clause to the main clause in front, like this:
To keep her basset hound away from the pizza, Ana keeps the squirt bottle
close by, so that she can "draw" like a
gunslinger if a dog tongue gets too close to the delivery box.
Unfortunately, you do not use a comma to connect a subordinate clause to the main clause in front of it. Review the rules.
Go back to the sentence to try again.