I am unable to access my family sharing Apple TV account for my mom and she has family sharing. Can you help me with this?

Hi ayala224,

Thank you for using the Apple Support Communities! For this issue, your mother would need to follow the steps below from Add a family member to your shared subscriptions - Apple Support:

If you already set up Family Sharing

After you set up Family Sharing, eligible subscriptions are automatically shared with your family members. If your family members can't access a subscription, here's what to do:

1. On your iPhone or iPad, go to Settings, then tap your name.

2. Tap Subscriptions.

3. Scroll down and make sure that Share with Family is turned on. 

4. Tap the subscription that you want to share.

* If the subscription is individual or student, upgrade your subscription to a family plan. 

* If the subscription isn't made by Apple, it might not be eligible to share. To share a subscription, turn on Share with Family under Family Access. 

Hope this helps!

Have a great day.