[Koha] Using z39.50 and http svc API do update biblios.

Hello, I connect to my koha z39.50 for updating using marcedit. I have huge problem 'cause no error from marcedit but my koha database is not updating at all. Is there prerequested to be able to do that? I can search from koha in marcedit, but record are not updated then to koha. 19:58:53-16/12 zebrasrv(5) [warn] XML: Entity: line 1: 19:58:53-16/12 zebrasrv(5) [warn] XML: parser 19:58:53-16/12 zebrasrv(5) [warn] XML: error : 19:58:53-16/12 zebrasrv(5) [warn] XML: Document is empty 19:58:53-16/12 zebrasrv(5) [warn] XML: 00840nam a2200133Ia 450000800410000010000120004124500940005326000180014765003330 19:58:53-16/12 zebrasrv(5) [warn] XML: ^ Thank you,