recently xsane stopped to work on my computer...

I don't remember exactly what i did when this happened (perhaps I made something of wrong on the panel configuration setting ??).

They are several days that I manage to fix this problem.Actually I get the error :
"xsane error during device I/O failed to open device hpaio:/usb/Deskjet..."

I get this error message after I modified the file /etc/sane.d/hp.conf    with the purpose to add inside it the exact manufacture name of my scanner (Hewlett-Packard ID 03f0:ac11 ) .

Before I made this, I got other kind of error messages ,  as
"failed to obtain value of option source"
and
"failed to start scanner : invalid argument"

I know this is a common problem , I followed this link to try to work around :
https://cromwell-intl.com/open-source/xsane-invalid-argument.html.  till now without success.

here some lines of error that I got from juornalctl
-----------------
Aug 25 11:18:04 localhost.pluto xsane[2791]: scan/sane/bb_ledm.c 531: unable to open http connection
Aug 25 11:18:46 localhost.pluto xsane[2810]: scan/sane/http.c 300: unable to open HP-LEDM-SCAN channe
Aug 25 11:18:46 localhost.pluto xsane[2810]: scan/sane/bb_ledm.c 531: unable to open http connection
Aug 25 11:22:07 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:22:12 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:22:14 localhost.pluto xsane[3018]: scan/sane/http.c 300: unable to open HP-LEDM-SCAN channe
Aug 25 11:22:14 localhost.pluto xsane[3018]: scan/sane/bb_ledm.c 531: unable to open http connection
Aug 25 11:22:14 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:24:09 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:30:05 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:30:10 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:30:12 localhost.pluto xsane[3302]: scan/sane/http.c 300: unable to open HP-LEDM-SCAN channe
Aug 25 11:30:12 localhost.pluto xsane[3302]: scan/sane/bb_ledm.c 531: unable to open http connection
Aug 25 11:30:12 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:35:39 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:43:16 localhost.pluto gnome-session[2088]: Gjs-Message: JS LOG: The property brightness doe
Aug 25 11:43:16 localhost.pluto gnome-session[2088]: Gjs-Message: JS LOG: The property vignette_sharp
Aug 25 11:43:16 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:43:23 localhost.pluto org.gnome.Caribou.Daemon[2097]: ** (caribou:2292): WARNING **: daemon
Aug 25 11:43:25 localhost.pluto xsane[3799]: scan/sane/http.c 300: unable to open HP-LEDM-SCAN channe
lines 55-78
-----------------

I will be happy to receive any kind of help ....

thank you