Help with L2Walker Script

hi guys,

i got one script and it work fine.

Label(Start)
!CharBuffs(Dance of Vampire[ID=310])
{
!IsMember(Name)
{
RequestJoinParty(Name,0)
}
}
IsMember(Name)
{
CharBuffs(Dance of Vampire[ID=310])
{
RequestOutParty(Name)
}
}
Delay(500)
!CharBuffs(Prophecy of Fire[ID=1356])
{
!IsMember(Name)
{
RequestJoinParty(Name,0)
}
}
IsMember(Name)
{
CharBuffs(Prophecy of Fire[ID=1356])
{
RequestOutParty(Name)
}
}
Delay(1000)
JMP(Start)

but this script only work solo for me. anyone know what i need change, that my PP buff 2 DD in party?