Tvheadend

My grabber tv_grab_Kaser do not work anymore with DSM 6.0 and TVH 4.1.2190
I tryed a fresh install -> no change
Struggling a little bit I discover that the unzip command was no more supported in DSM 6.0 and changed against 7z command -> modified the script.

I am now able to grab the data correctly, at least on display (standard output)
However nothing is updated in TVH.

Activating the log, I discovered this error
ltv: /usr/bin/tv_grab_kazer.sh: htsmsg_xml_deserialize error Unknown syntatic element: <!DOCTYPE tv

Could someone help me to fix this in a way or another ?

Attached : the unzipped xml file if it could be usefull