Greetings Hannaahmoore,
Thanks for your post! Based on the information, you've had some struggles recording your iPhone's screen. We've got your back!
It may seem simple, but have you tried to restart your iPhone in the last two days? If not, try that out first: Restart your iPhone
Do you happen to have any profiles installed? This would show up at the top of the Settings app, under your name. If you have an app configuration profile: How to delete an app that has a configuration profile on your iPhone, iPad, or iPod touch
If the steps above don't resolve the error, try to disable Wi-Fi and then Bluetooth; testing between them to determine what might be causing the alert. Also, test screen recording in multiple apps to make sure it's not specific to one app.
Additional Resources: How to record the screen on your iPhone, iPad, or iPod touch
Wishing you the best, cheers!
