Weaponmod fails to start on a freshly installed server (HL Bugfixed)

[szGabu]

Upon installing weaponmod, the server will crash with this message.

[WEAPONMOD]: VTable Offset not found: CBasePlayerItem::iItemSlot (amxx: item_iitemslot)
[WEAPONMOD]: Failed to find some VTable offsets. The server will now crash. Goodbye.

Checking the included master.games.txt, we can see there's a line commented.

"Game Master"
{
	//
	// Half-Life: Deathmatch
	//

	"valve/offsets-virtual-cbaseplayerammo.txt"
	{
		"game"  "valve"
	}

	// Already exists in AMXX. Provided for reference.
	// "valve/offsets-virtual-cbaseplayeritem.txt"
	// {
	// 	"game"  "valve"
	// }

	"valve/offsets-virtual-cbaseplayerweapon.txt"
	{
		"game"  "valve"
	}

	"valve/settings.txt"
	{
		"game"  "valve"
	}
}

Uncommenting the offsets-virtual-cbaseplayeritem.txt section makes the module work, but more problems arise, like #20

amxx version output:

AMX Mod X 1.10.0.5472 (http://www.amxmodx.org)
Authors:
	David "BAILOPAN" Anderson, Pavol "PM OnoTo" Marko
	Felix "SniperBeamer" Geyer, Jonny "Got His Gun" Bergstrom
	Lukasz "SidLuke" Wlasinski, Christian "Basic-Master" Hammacher
	Borja "faluco" Ferrer, Scott "DS" Ehlert
Compiled: Nov 14 2025 02:32:06
Built from: https://github.com/alliedmodders/amxmodx/commit/1e3c7c9
Build ID: 5472:1e3c7c9
Core mode: JIT+ASM32

meta version output

Metamod-r v1.3.0.149, API (5:13)
Metamod-r build: 11:31:17 Apr 23 2024
Metamod-r from: https://github.com/theAsmodai/metamod-r/commit/603a257

version output

Protocol version 48
Exe version 1.1.2.2/Stdio (valve)
ReHLDS version: 3.15.0.881-dev+m
Build date: 01:40:25 Nov 16 2025 (4236)
Build from: https://github.com/rehlds/ReHLDS/commit/015aa03