how do u fix a iphone is disabled connect to itunes on screen

See this Apple support link ➡️ If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

Or watch this companion video ⬇️

These instructions which used to have the very title about what to do when you see that message have slightly different instructions from the "disabled device" links.

If you see the Restore screen on your iPhone, iPad, or iPod touch - Apple Support