Haptic

Are they no longer working for anything, or just for selected things? Since you have restarted your phone, that is the first step for user troubleshooting. The next step would be force restart, On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons for at least 10 seconds, until you see the Apple logo. The next step is Restore from backup, Restore your iPhone, iPad, or iPod touch from a backup - Apple Support then Restore to factory if needed, Restore your iPhone, iPad, or iPod to factory settings - Apple Support. Test after each step.

I would have said to make an appointment at the Genius Bar of the nearest Apple Store to have the hardware checked, but it is strange that all of a sudden your ringer has also stopped. If that occurred after performing all 4 of the steps I provided, I would certainly make the Genius Bar appointment.

The tips in the following article may help resolve the issue.

Why does audio and haptic feedback not working on my iPhone 7 and how to fix it? [Troubleshooting Guide] - iKream