Description:
Invalid [type] : 'None'
This means you have left the type column empty.
Invalid [type] : 'Both'
This means you have entered an invalid entry. For this example, we entered "Both" as a value. Your error report will be different depending on what value you entered.
To find out more about type visit the Documentation page.
Solution:
Enter a valid option into the type column.
Valid options include:
Physical
Digital