Pokemon Uranium crash log

So i just started Playing Uranium and this pops up at the beginning and im not sure what it is but my game stops working after i close it. Need help i have no idea what to do if this is normal then ignore.
Exception: RuntimeError
Message: Failed to load the bitmap located at: Graphics/Pictures/Arrow1
*BitmapCache:397:in `load_bitmap'
* PokemonMessages:1082:in `pbCreateMessageWindow'
* PokemonMessages:1012:in `pbMessage'
* PokemonMessages:663:in `command_101'
Interpreter:304:in `execute_command'
Interpreter:193:in `update'
Interpreter:106:in `loop'
Interpreter:198:in `update'
Game_Event_:265:in `update'
* Game_Map_:456:in `update'
Exception: Errno::ENOENT
Message: File Audio/SE/PU-Grasswalk.ogg not found.
** JV Extra Scripts:39:in `se_play'
** JV Extra Scripts:39
** JV Extra Scripts:13:in `call'
PBEvent:54:in `trigger'
PBEvent:49:in `each'
PBEvent:49:in `trigger'
* PokemonField:1569:in `pbOnStepTaken'
Game_Player_:484:in `update_old'
Walk_Run:75:in `update'
* Scene_Map:104:in `update'
Exception: Errno::ENOENT
Message: File Audio/BGS/PU-River.ogg not found.
** JV Extra Scripts:26:in `bgs_play'
** JV Extra Scripts:26
** JV Extra Scripts:13:in `call'
PBEvent:54:in `trigger'
PBEvent:49:in `each'
PBEvent:49:in `trigger'
* PokemonField:1569:in `pbOnStepTaken'
Game_Player_:484:in `update_old'
Walk_Run:75:in `update'
* Scene_Map:104:in `update'