[Koha] koha barcode mondatory

Hello, I have setup koha and would like to try entring some data into it, but each time I try to entre a record, I can not go through the Items section. I get an error message "-1 mandaroty fields empty" and it points to the barcode field "p -barcode *". I am using koha 2.2.8. I do not remember setting any barcode parameters as mandatory. Plaese help me out. Nkhaniyawo ================================================= Nkhaniyawo D.B. Nyirenda Computer Technician Mzuzu University P/B 201 Luwinga Mzuzu 2 Malawi =================================================