Issues with mms and iMessage messaging

I am using an iPhone 14 with iOS 26.3 Something has changed as I can no longer send messages to Android users using the mms protocol. When I send messages to android users I get the message “unable to deliver”
I can still send messages to iPhone users use iMessage
can anyone help rectify this issue
Miski1144

Need to reset iMessage
To fix iMessage issues with turn iMessage off and on in Settings, ensure you have an active data/Wi-Fi connection, and verify that your phone number is correctly listed in Settings > Messages > Send & Receive. If you recently ported your number, wait up to 24 hours, as activation may be delayed.
Key Troubleshooting Steps for Lebara iMessage:

• Restart and Toggle: Go to Settings > Messages, turn off iMessage, restart your iPhone, and turn it back on.
• Verify Number/Porting: If you ported your number, check that Settings > Phone > My Number shows the correct, ported number, not the temporary SIM number.
• Check Data/Balance: Ensure your Lebara plan is active and you have data, as activation requires it. Check with *133#.
• Sign In: Verify your Apple ID is signed in under Settings > Messages > Send & Receive.
• Reset Network Settings: Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.

Thanks Superuser 25for the info
I’ve reinstalled the SIM card which seems to have done the trick messaging working correctly now
Miski1144