Unable to insert record after modifying field data in "Parse data from uploaded CSV files into fields"

Unable to insert record after modifying field data in "Parse data from uploaded CSV files into fields"

Hi, 

I followed the steps here https://help.zoho.com/portal/en/kb/creator/zoho-creator-academy/files/articles/parse-csv-file-into-fields#Requirement and every time I modify the field data under the heading and re-upload I get an error message. \
 

I only changed the numbers so there should not be any issue.
Any help is appreciated.

Thanks,

Jason