I have a new iPad Air 5 and now my iMessage is not working. I can’t receive or send messages. How do i fix it?

Judesg wrote:

How do i fix my iMessage on my new iPad Air 5? I can’t receive or send messages.

Start here If you can't send or receive messages on your iPhone or iPad - Apple Support

If you meant text message then look here Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch - Apple Support

If you have an iPhone - and both iPad and iPhone are signed-in to iCloud with the same AppleID - to send SMS/MMS messages (green bubbles) from your iPad you must explicitly enable Text Message Forwarding for your new iPad on your iPhone...

On your iPhone:

Settings > Messages > Text Message Forwarding - set to ON - and explicitly enable your iPad from the list of devices.

Also ensure that Messages in iCloud is enabled on both your iPhone and iPad:

Settings > [Your Name / AppleID] > Messages - set to ON

See:

Set up Messages on iPad - Apple Support

and:

How to forward SMS/MMS text messages from your iPhone to your iPad ...

If you can't send or receive messages on your iPhone or iPad - Apple Support