Error Google Sheet "Cannot create a string longer than 0x1fffffe8 characters"

Hello, I’ve never seen this happen before, but I’m getting this error:

“Cannot create a string longer than 0x1fffffe8 characters” in Google Sheets (screenshot attached).

I’ve tried refreshing the page and restarting my computer, but nothing seems to work. Not sure what’s going on—any ideas on how to fix this?

Thanks a lot for your help!

Does your spreadsheet happen to contain a really big row?

The error message implies some piece of data was too big to parse (>512 MB) (reference).