So I tried to import xls file and as seen in picture it worked, only problem was that I forgot the phone numbers tab so I tried to delete those contacts and add the xls again but it doesen't bring the contacts anymore. Why? I read somewhere that it may be because they are still in system so I permanently deleted them from the "recover contacts" tab too. still not getting them when trying to add that xls file again. Those errors are nothing to worry about, they are from clients that don't have email address.