Whenever I try to import any table into Data, this prompt immediately pops up, and I am forced to exit the interface! What should I do?
How big is the existing table? What plan are you on?
Try to upload to Google Sheet in your drive, then select google sheet import and not CSV
You could also try importing your tables into a new project to see if that changes anything.
As Thinh suggested, you might be approaching or going past row limits on your plan. That is the first thing you could clarify.
Thank you for your reply. My issue has been resolved; I tried logging out of my account and then logging back in, and everything returned to normal.