Take a look at the passage again:
Erin cannot tolerate tight and restrictive clothing. Because, she claims,
she had been wrapped too tightly as a mummy in her previous Egyptian life.
You chose to connect the subordinate clause to the main clause in front, like this:
Erin cannot tolerate tight and restrictive clothing,
because, she claims, she had been wrapped too tightly as a mummy
in her previous Egyptian life.
Unfortunately, you cannot connect these two parts with a comma. Review the rules.
Go back to the sentence to try again.