Hi @Leem84
Welcome to the community forums
Sorry to hear that you're having issues with iMessages at this time. Can you please try these steps to see if this resolves the issue. Go to Settings.
• Scroll down and click Phone.
• Click My Number.
• Tap the number showing and edit it with the correct number.
• Click OK.
• Click Save.
• Go back to Settings.
• Scroll down and click Messages.
• Turn iMessages off and then back on again.
• Turn off device.
• Turn on device again after at least 30 seconds have passed.
Try then sending an iMessage and let us know if you have any further issues at all.