Error -1005 when getting an invitation to Family Share

Hello luzette176,

Thanks for posting in Apple Support Communities. We understand that your daughter is unable to join your Family Sharing group due to an error. We'd like to help!

If you haven't already try restarting the iPhone. This is a simple step that can often resolve unknown issues like this: Restart your iPhone - Apple Support

We also recommend trying to accept the invitation on another network, using cellular data or a different Wi-Fi network. This helps to rule out any interference from the network that the iPhone is currently connected to.

Let us know the results! Take care.

Hey luzette176,

Is she able to join the family if she accepts from your device instead? Here are those steps: Add a member to a Family Sharing group on iPhone - Apple Support

Add a family member with an Apple ID

The organizer of the Family Sharing group can add a family member who has their own Apple ID.

1. Go to Settings > [your name] > Family Sharing, then tap the Add Member button in the upper-right corner.

2. Tap Invite Others, then follow the onscreen instructions.

You can send the invitation using AirDrop, Messages, or Mail. If you’re near the family member, you can also tap Invite in Person and ask the family member to enter their Apple ID and password on your device.

If not, we recommend reaching out to Apple Support to look into this with you in more detail: Contact Apple Support

Thanks and take care!