How to install homemade IPA app on iPhone

I built a few homemade iOS Web Apps that I built with Xcode. I somehow was able to get them on my old iPhone 13. They are in IPA format. I upgraded to a 14 and need help reinstalling them.

I've tried using Apple Configurator as well as just dragging them through the finder, but keep getting the following error:

"This app cannot be installed because its integrity could not be verified."

I tried going into the Device management to trust the profile, but no profiles are shown.

Like I said, I had them on there before. I just don't know how I did it.

Please be specific and detailed with your instructions. This project was me experimenting to see if becoming a developer is in my future. Clearly I'm not meant for this.

Thanks in advance.

How to install homemade IPA app on iPhone
 
 
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