Error running system event handling function for resource vrp: citizen:/scripting/lua/scheduler.lua:41: Failed to execute thread: @vrp/modules/group.lua:117: attempt to index a nil value (local 'groupdef')
stack traceback:
        @vrp/modules/group.lua:117: in field 'removeUserGroup'
        @vrp/modules/admin.lua:119: in local 'prompt'
        @vrp/modules/gui.lua:197: in local 'f'
        [string "..."]:100: in upvalue 'handler'
        citizen:/scripting/lua/scheduler.lua:219: in function <citizen:/scripting/lua/scheduler.lua:218>
stack traceback:
        [C]: in function 'error'
        citizen:/scripting/lua/scheduler.lua:41: in field 'CreateThreadNow'
        citizen:/scripting/lua/scheduler.lua:218: in function <citizen:/scripting/lua/scheduler.lua:182>