Hey cool241,
When was the last time you backed up your device through iCloud or a computer? We want to make sure that you have your important data backed up before we proceed with the next steps.
Try to back up your device now if you haven't yet: How to back up your iPhone, iPad, and iPod touch
Once fully backed up, we can first check for any available software updates: Update your iPhone or iPad
Let us know if an update was available and if updating resolved the issue.
If the issue persists or no updates are available, we'll need to try restoring your device back to factory settings: How to factory reset your iPhone, iPad, or iPod touch
We hope all these steps help!
Best regards.