Can’t open my MacBook Air after resetting password

Hi, and welcome to the Apple Community,

See if something in one of Apple Support's linked articles below helps:

If your Apple ID is locked or disabled - Apple Support

Find out what to do if you see the Activation Lock screen on your device:

How to remove Activation Lock – Apple Support

Re: Apple ID support team / help

If needed:

There is a "Get Support" link (or download the support app) on the Apple ID website (link below)

Apple ID - Official Apple Support

All the best :-)