I was playing Half-Life 2 campaign with randomized NPCS from Half-Life Resurgence and when I switched to AK47, all my guns became invisible and broken, and the only though that would show up for guns that weren't the AK47 would be the muzzle flash.

Error Codes:
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_firemodes.lua:109: attempt to get length of a boolean value
1. GetCurrentFiremodeTable - lua/weapons/arc9_base/sh_firemodes.lua:109
2. swepGetAllAffectors - lua/weapons/arc9_base/sh_0_stats.lua:148
3. GetValue - lua/weapons/arc9_base/sh_0_stats.lua:323
4. GetSight - lua/weapons/arc9_base/sh_sights.lua:372
5. swepGetAllAffectors - lua/weapons/arc9_base/sh_0_stats.lua:101
6. GetValue - lua/weapons/arc9_base/sh_0_stats.lua:323
7. SetBaseSettings - lua/weapons/arc9_base/sh_init.lua:136
8. InvalidateCache - lua/weapons/arc9_base/sh_0_stats.lua:56
9. unknown - lua/weapons/arc9_base/sh_deploy.lua:12
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. v - lua/arc9/shared/sh_move.lua:12
3. unknown - lua/includes/modules/hook.lua:102
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. GetIsNearWall - lua/weapons/arc9_base/sh_nearwall.lua:32
4. swepIdle - lua/weapons/arc9_base/sh_anim.lua:297
5. unknown - lua/weapons/arc9_base/sh_think.lua:63
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. v - lua/arc9/shared/sh_move.lua:239
4. unknown - lua/includes/modules/hook.lua:102
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. TranslateAnimation - lua/weapons/arc9_base/sh_animtranslate.lua:4
4. PlayAnimation - lua/weapons/arc9_base/sh_anim.lua:5
5. swepIdle - lua/weapons/arc9_base/sh_anim.lua:301
6. unknown - lua/weapons/arc9_base/sh_think.lua:63
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. TranslateAnimation - lua/weapons/arc9_base/sh_animtranslate.lua:49
4. PlayAnimation - lua/weapons/arc9_base/sh_anim.lua:5
5. swepIdle - lua/weapons/arc9_base/sh_anim.lua:301
6. unknown - lua/weapons/arc9_base/sh_think.lua:63
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. TranslateAnimation - lua/weapons/arc9_base/sh_animtranslate.lua:55
4. PlayAnimation - lua/weapons/arc9_base/sh_anim.lua:5
5. swepIdle - lua/weapons/arc9_base/sh_anim.lua:301
6. unknown - lua/weapons/arc9_base/sh_think.lua:63
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. swepGetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. unknown - lua/weapons/arc9_base/sh_think.lua:71
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. PostModify - lua/weapons/arc9_base/sh_attach.lua:188
4. ReceiveWeapon - lua/weapons/arc9_base/sh_net.lua:146
5. func - lua/arc9/server/sv_net.lua:44
6. unknown - lua/includes/extensions/net.lua:34
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. unknown - lua/weapons/arc9_base/sh_attach.lua:148
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. swepGetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. unknown - lua/weapons/arc9_base/sh_shoot.lua:250
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. swepGetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. unknown - lua/weapons/arc9_base/sh_shoot.lua:254
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. swepGetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. unknown - lua/weapons/arc9_base/sh_shoot.lua:258
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. swepGetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. unknown - lua/weapons/arc9_base/sh_shoot.lua:275
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:501
3. GetIsNearWall - lua/weapons/arc9_base/sh_nearwall.lua:32
4. SprintLock - lua/weapons/arc9_base/sh_shoot.lua:24
5. unknown - lua/weapons/arc9_base/sh_shoot.lua:282
[ARC9 Weapon Base] lua/weapons/arc9_base/sh_0_stats.lua:666: attempt to perform arithmetic on a boolean value
1. GetProcessedValue - lua/weapons/arc9_base/sh_0_stats.lua:666
2. HasAmmoInClip - lua/weapons/arc9_base/sh_reload.lua:563
3. unknown - lua/weapons/arc9_base/sh_shoot.lua:286

Yeah, it kinda spammed error codes.