I bought my Beats X on January 31, 2020 and now november 2020 my coverage had expired

Hello sittichai179,

Thanks for asking the Apple Support Communities for help with you device warranty coverage.

These articles refer to Apple Support for help with this:

Update your proof of purchase - Apple Support

Correct the purchase date or expiration date for your AppleCare agreement - Apple Support

Please use this link to contact Apple Support for assistance with this: Contact Apple Support

Thanks and have wonderful day.