Players can't connect

[taikonaut 85]

Hey, I´m a bit confused.

Out of nothing, players can't connect to my server anymore. I literally changed nothing in the last couple of weeks, since the server was running very stable and smooth.

RPT log says there is an error in the server_monitor.sqf:

15:34:09 Error in expression <;
};
};
} forEach _inventory;

{
if (_x == "Maintenance") then { _object setVari>
15:34:09   Error position: <== "Maintenance") then { _object setVari>
15:34:09   Error ==: Type Array, expected Number,String,Object,Side,Group,Text,Config entry,Display (dialog),Control,Team member,Task,Location
15:34:09 File z\addons\dayz_server\system\server_monitor.sqf, line 207

and upon player connecting

15:35:41 "get: STRING (xxx), sent: STRING (xxx)"
15:35:41 "Player UID#xxx CID#? PID#3(misioo) as Survivor1_DZ, logged off at Wilderness [-187:-104]"
15:35:41 "ERROR: Cannot Sync Character misioo as no characterID"

I did NOT change a single thing on the server, not even on the machine itself.

"Have you tried turning it off and on again?" -- yes.