"Low storage for online backup" alert

Frequently as I am using my computer, I see a Norton alert come up.  It says:  "Low storage for online backup".  Ok.  I try to resolve this but am running into more errors--such as a pop up page that looks like the 'Chat' page which I have used.  I cannot remove that pop up at all no matter what I do when I am on Norton trying to add more storage for online back up.  In fact, the pop up is covering 3/4's of the page so that I cannot even read about any kind of upgrade or addition of more storage for online back up.  Help.  How do I call you?  Where is your contact information for technical support?  My computer is running funny, so much that I had to restore it back a week.  But the pop up Norton "Chat" continues to show up.  How do I resolve this?  Ever since I uploaded Windows 11 my computer is a mystery.  kathryn

[Edit: Clarified subject]

Please, what is your geo-location/country.  Maybe, I can find Support phone number for your location/country. 

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