Cop Callout related crash

[ZAJL]

Application has crashed: C++ exception
[string "lib/units/enemies/cop/copsound.lua"]:134: attempt to concatenate local 'sound_name' (a nil value)

SCRIPT STACK

clbk() lib/units/beings/player/playerdamage.lua:1174
_update_queued_tasks() @mods/[Rokk] IREnFIST - Reloaded/lua/enemymanager.lua:56
update() lib/managers/enemymanager.lua:52
update() lib/setups/gamesetup.lua:762
update() lib/setups/networkgamesetup.lua:21
core/lib/setups/coresetup.lua:557

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Callstack:

     payday2_win32_release  (???)     ???                                                 
     payday2_win32_release  (???)     ???                                                 
     payday2_win32_release  (???)     ???                                                 
     payday2_win32_release  (???)     zip_get_name                                        
                     ntdll  (???)     RtlDosSearchPath_Ustr                               
                     ntdll  (???)     RtlRestoreLastWin32Error                            
                     ntdll  (???)     ZwQueryVirtualMemory                                
                KERNELBASE  (???)     VirtualQueryEx                                      
                KERNELBASE  (???)     SetUnhandledExceptionFilter                         
                KERNELBASE  (???)     SetUnhandledExceptionFilter                         
     payday2_win32_release  (???)     ???                                                 
     payday2_win32_release  (???)     zip_get_name                                        

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How to Replicate:
Happens occasionally in heists with police, seems like the mod is calling for a cop line that doesn't exist