COMPLETED Mariovania

[Lithering]

Hey dude, I've been playing your game these last couple of days and I love it. I encountered a mayor bug, however. When I enter the Goombafalloon boss room, if I jump on a platform, shoot, or do anything that isn't walking, the game crashes. With this bug, I can't fight the boss.
Crash log: wrong number of arguments (given 4, expected 3)
D:/Juegos PC/Mariovania/Mariovania/data/scripts/enemies.rb:3021:in `stomp'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:548:in `block in stomp'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:548:in `each'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:548:in `stomp'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/player.rb:160:in `block in update'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/player.rb:159:in `times'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/player.rb:159:in `update'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:122:in `block in update'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:122:in `each'
D:/Juegos PC/Mariovania/Mariovania/data/scripts/game.rb:122:in `update'
C:/Users/Camilo/AppData/Local/Temp/ocr7723.tmp/src/mariovania.rb:78:in `update'
C:/Users/Camilo/AppData/Local/Temp/ocr7723.tmp/lib/ruby/gems/2.4.0/gems/gosu-0.13.1-x86-mingw32/lib/gosu/patches.rb:61:in `tick'
C:/Users/Camilo/AppData/Local/Temp/ocr7723.tmp/lib/ruby/gems/2.4.0/gems/gosu-0.13.1-x86-mingw32/lib/gosu/patches.rb:61:in `tick'
C:/Users/Camilo/AppData/Local/Temp/ocr7723.tmp/src/mariovania.rb:158:in `<main>'

Hope you can solve it soon.

EDIT: I have the latest version, 1.2.9
EDIT2: Same happens with the Corridors of Infinity boss.