Traceback (most recent call last):
  File "game.py", line 13037, in <module>
  File "game.py", line 12997, in main_menu
  File "game.py", line 10887, in play_game
  File "game.py", line 6162, in handle_keys
  File "game.py", line 1024, in use
  File "game.py", line 8739, in Technique_Temporary_System
  File "game.py", line 8528, in Technique_AOE_Attack
  File "game.py", line 2173, in Melee_Attack_Calculation
  File "game.py", line 1830, in Total_Damage_Calculation
  File "game.py", line 1627, in Elemental_Bonuses
TypeError: unsupported operand type(s) for *: 'int' and 'NoneType'
[9200] Failed to execute script game