Unable to connect to iCloud

Hi ritu58,

Welcome to the Apple Community.

If possible on your iPad version, you might want to to update the iOS on your iPad.

Eg:

iOS 15 and iPadOS 15 are compatible with these devices - Apple Support

If your iPad version is compatible: How to update to iOS 15 or iPadOS 15 - Official Apple Support

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For iCloud: Apple support have articles online (links below) that can help guide you:

Re: Unable to connect to iCloud

If you can't connect or sign in to iCloud - Apple Support

Re: I am unable to retrieve my pictures from iCloud

Scroll to: Download copies of your photos and videos (ie: in the linked article below)

Set up and use iCloud Photos – Apple Support (AU)

Or

If you're missing photos or videos in the Photos app - Apple Support

Re: not able to log out iCloud

Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV or Mac – Apple Support (AU)

To sign in online: https://www.icloud.com

Re: unable to start backup as well.

Backup methods for iPhone, iPad and iPod touch – Apple Support (AU)

All the best :-)

Try Settings/Your Name/iCloud and slide off syncing. Wait a few minutes and then slide syncing on. Allow time for syncing to occur. The photos sync is extremely slow. It could take several days or more for the photos to sync.  

See if anything here helps

Backup couldn’t be completed.   -

Backup couldn’t be completed or you can’t restore.  *

Backup couldn’t be completed or you can’t restore (2).  *

Backup couldn’t be completed or you can’t restore (3).  *

Some things you can try. Do you have access to another WiFi network where you can try? That has worked for several people.

Try a restart.

Restart your iPhone, iPad, or iPod touch    *

Try a forced restart. See the section towards the end of the article.

Reset Device. -

If necessary

Hard reset.     -

Do a backup and try a factory reset. Then restore from your backup.

Restore to Factory setting.      *

Restore - If you see an error when you update or restore your iPhone, iPad, or iPod.   *

Backup - Restore your device from an iCloud or iTunes backup.     *