I can't figure out how to allow more than one submission on the form.

I can't figure out how to allow more than one submission on the form. I blocked it and now can't figure out how to change it back.

I cloned your form and I can see that the Unique Submission and Unique Question is set to "No Check". I believe your issue is now resolved.

You can refer to these guides:
How-to-Set-Unique-Submissions-on-a-Form
How-to-set-Form-Limits-Based-on-a-Unique-Question

Hope that helps. If you have any questions, let us know. Thank you.