app store cannot log in

See the Apple Support article(s) below.

App Store, iTunes Store, or other Apple services - If you can't connect   *

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   *

Restart your iPad.   *

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 the 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.     *

Are you getting a message that your account is disabled in the app store and iTunes

see this

If you see a message that says "Your account has been disabled in the App Store and iTunes," contact Apple Support for help.

What kind of error are you getting when logging in to the App Store?

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I cannot read this language so I have no idea. What is the message saying?

You are welcome. Glad to help.