Crash caused by clicking outside of map

[Robert]

Error: libraries/jumper/pathfinder.lua:332: bad argument #1 to 'format' (number expected, got nil)
stack traceback:
    [C]: in function 'format'
    libraries/jumper/pathfinder.lua:332: in function 'getPath'
    interface/Pathfinding.lua:82: in function 'findPath'
    class/Player.lua:41: in function 'movetoMouse'
    gamemodes/game.lua:144: in function 'mousepressed'
    main.lua:58: in function <main.lua:55>
    [string "boot.lua"]:454: in function <[string "boot.lua"]:435>
    [C]: in function 'xpcall'