InviteFriends Plugin – Uploading a CSV file gives errors

Hi,

When uploading a CSV file the following errors shows up.

Warning: move_uploaded_file(.//home/stefnitert/domains/managementplatform.nl/public_html/wp-content/linkedin_connections_export_microsoft_outlook.csv) [function.move-uploaded-file]: failed to open stream: No such file or directory in /home/stefnitert/domains/managementplatform.nl/public_html/wp-content/plugins/bp-invitefriends.php on line 326

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpJgVzwq' to './/home/stefnitert/domains/managementplatform.nl/public_html/wp-content/linkedin_connections_export_microsoft_outlook.csv' in /home/stefnitert/domains/managementplatform.nl/public_html/wp-content/plugins/bp-invitefriends.php on line 326

Warning: fopen(.//home/stefnitert/domains/managementplatform.nl/public_html/wp-content/linkedin_connections_export_microsoft_outlook.csv) [function.fopen]: failed to open stream: No such file or directory in /home/stefnitert/domains/managementplatform.nl/public_html/wp-content/plugins/bp-invitefriends.php on line 327

Warning: fgetcsv() expects parameter 1 to be resource, boolean given in /home/stefnitert/domains/managementplatform.nl/public_html/wp-content/plugins/bp-invitefriends.php on line 329

Warning: unlink(.//home/stefnitert/domains/managementplatform.nl/public_html/wp-content/linkedin_connections_export_microsoft_outlook.csv) [function.unlink]: No such file or directory in /home/stefnitert/domains/managementplatform.nl/public_html/wp-content/plugins/bp-invitefriends.php on line 337

I’m not quite sure what to do with this. Can anybody give me some advise on this?
Thanks!