can apply patch

[msx008]

hi , can apply patch hi have this (i'm not developper)
observium version CE 23.9.13005 (16th September 2023)

root@observium:/opt/observium# patch -p2 -N < observium-proxmox.diff
patch unexpectedly ends in middle of line
patch: **** Only garbage was found in the patch input.

in dir in only have that
root@observium:/opt/observium/includes/discovery/storage# ll
total 20
-rw-rw-r-- 1 administrateur administrateur 6906 5 mai 2023 cisco-flash-mib.inc.php
-rw-rw-r-- 1 administrateur administrateur 5420 5 mai 2023 host-resources-mib.inc.php
-rw-rw-r-- 1 administrateur administrateur 451 5 mai 2023 ucd-snmp-mib.inc.php

thanks