Error when mapping ContactForm7 with Airtable

[Jay_P]

Upon pasting the data, I keep getting this error.
Please suggest how to resolve it.

[laurenCTCL]

I'm getting this error again in a different situation as the one I posted above.

Made a lookup field from a table that I'm going to delete so that i could move the vavlues.

Created a single line text field.

Selected the values in the lookup field.

Attempted to paste in the new single line text field. Got the error over and over. I think this might be due to the paste being too large- I was able to past in chunks of the data but not all of the records.

[Joel_Burman]

I found this issue was caused by hidden formatting in the text - when I paste the text into Notepad first (to wash-out the formatting) and then into Airtable the error did not occur.