Wrong import

If an error occurs when importing the contact data, an error report will immediately show you where the error is. The line and the column are output to make it easier for you to search for the error.
error_report

Save error report

Through "Save error report" you can store the report on your computer. To do this, click on "Save error report" and then the left mouse button. Choose "Save as…" and finally the desired storage directory.
 error report