Crash on opening app settings

My app’s URL: nm68Oe8oE6TtcM3S6mTG

When I click on the setting tab at the top of the screen, the page refreshes, fails, and gets stuck in a refresh loop.
I believe this is the cause of the error:



Do you have any settings or extensions that might affect this?

No, I created a new Chrome profile specially to test this out. Please tell me if you need any logs.

When you say settings, I think you mean this?

Yes, exactly. The bug still occurs as soon as I click on the gear button at the top.