[Ifeffit] Problem with Artemis opening an Athena project

Dear all, I have a problem opening an Athena project with Artemis. When I have selected it, it appears this error: Use of uninitialized value in addition (+) at C:/strawberry/perl/site/lib/Demeter/UI/Artemis/Prj.pm line 132 And after selecting OK and import selected data, everything closes. This Prj.pm file is attached in the mail, if it is of any help. Thank you. Best regards, Irina Pi.