I've been getting this crash everytime i try and enter a heist, and I have no idea what mod i have might be affecting player movement

Thu Sep 06 17:33:55 2018

Application has crashed: C++ exception
mods/Drag not bag/playermanager.lua:2510: attempt to call method 'modify_value' (a nil value)

SCRIPT STACK

_max_stamina() lib/units/beings/player/playermovement.lua:1130
lib/units/beings/player/playermovement.lua:84
spawn_unit() =[C]
spawn_unit_original() lib/network/base/networkpeer.lua:2162
original() @mods/Bot Weapons/lua/networkpeer.lua:5
spawn_unit() @mods/base/req/core/Hooks.lua:260
spawn_players() lib/network/base/basenetworksession.lua:1515
update() lib/states/ingamewaitingforplayers.lua:277
update() core/lib/utils/game_state_machine/coregamestatemachine.lua:92
update() lib/setups/setup.lua:876
update() lib/setups/gamesetup.lua:701
update() lib/setups/networkgamesetup.lua:21
core/lib/setups/coresetup.lua:540

Callstack:

payday2_win32_release  (???)     ???                                                 
         payday2_win32_release  (???)     zip_get_name                                        
         payday2_win32_release  (???)     zip_get_name

Current thread: Main

System information:
    Application version : 1.92.682
    CPU : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (2 cores); SSE; SSE2; SSE3; SSSE3; SSE4.1; SSE4.2
    DirectX : 9.0c
    GPU : NVIDIA GeForce GTX 970M / nvldumd.dll[23.21.13.8912]
    Language : english
    Memory :     8091MB 616KB
    OS : 5.1.2600 (Service Pack 3) 0x300-0x1 (64 bits)
    Physics : threaded
    Renderer : DX9 threaded
    Sound : CREATIVE (Speakers (Sound Blaster Recon3Di))