In the Flamethrower EX helper: [State 0, DestroySelf]
type = Changestate
trigger1 = time = 40 && Parent, stateno != 1130
value = 1126
if instead of 1130 you put 1122 it resolves the error (the helper stays there); I'm searching another way to fix it.
for the weak one:
[State 0, DestroySelf]
type = Changestate
trigger1 = Parent, stateno != 1120
trigger2 = time = 30
value = 1126
for the medium one:
[State 0, DestroySelf]
type = Changestate
trigger1 = Parent, stateno != 1121
trigger2 = time = 35
value = 1126
for the strong one:
[State 0, DestroySelf]
type = Changestate
trigger1 = Parent, stateno != 1122
trigger2 = time = 40
value = 1126
for the EX one:
[State 0, DestroySelf]
type = ChangeState
trigger1 = Parent, stateno != 1130
trigger2 = time = 40
value = 1126