Here is the item again:
Erin cannot tolerate tight and restrictive clothing. Because, she claims, she was wrapped too tightly as a mummy in her previous Egyptian life.

You chose to use Punctuation Rule 1 to fix the problem:

Main Clause + Ø + Subordinate Clause.

Here is the correction:

Erin cannot tolerate tight and restrictive clothing because, she claims, she was wrapped too tightly as a mummy in her previous Egyptian life.

Well done! You deserve those cyber tacos!

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