Error message when trying to send and receive pictures using text messaging.

Hello Bumsbabe78,

Welcome to Apple Support Communities!

We want to help so you can get these photos in your messages like you expect.

To learn more, is this happening with iMessage or with SMS only?

Try the steps here to help further isolate and resolve the issue:

"If you still need help

• Try to restart your iPhone or iPad.
• Check your network connection. To send a message as iMessage or MMS, you need a cellular data or Wi-Fi connection. To send an SMS message, you need cellular network connection. If you turn on Wi-Fi Calling, you can send SMS messages over Wi-Fi.
• Check with your carrier to see if the type of message you’re trying to send, like MMS or SMS, is supported.
• If you’re trying to send group MMS messages on an iPhone, go to Settings > Messages and turn on MMS Messaging. If you don't see an option to turn on MMS Messaging or Group Messaging on your iPhone, then your carrier might not support this feature.
• Make sure that your device has enough space to receive images and videos."

This Apple Support page has the full details and even more steps to take: If you can't send or receive messages on your iPhone or iPad - Apple Support

We hope this helps to isolate the issue and get your photos to appear in the messages.

Cheers!