everytime i load into this addon, i get this error

[VRMod - Experimental Virtual Reality] lua/vrmod/vrmod.lua:251: VR_Init failed: 108
1. VRMOD_Init - [C]:-1
2. VRUtilClientStart - lua/vrmod/vrmod.lua:251
3. DoClick - lua/vrmod/vrmod_menu.lua:87
4. unknown - lua/vgui/dlabel.lua:254

i jut got this error after subbing to the following addons, lua/vrmod/vrmod.lua:251: VR_Init failed: 108 1. VRMOD_Init - [C]:-1 2. VRUtilClientStart - lua/vrmod/vrmod.lua:251 3. DoClick - lua/vrmod/vrmod_menu.lua:87 4. unknown - lua/vgui/dlabel.lua:254]VRMod improved HL2 weapons[http//%5BVRMod+-+Experimental+Virtual+Reality], [url=https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2913484004
]VRMod Object Weight[/url].

idk if that's the problem but i might as well include that information. any help is appreciated