[L2NPC] "IncrementParam" doesn't work

[Master Toma]

Level up clan, "IncrementParam" doesn't work, in chat windows clan is level up and delete quantity adena but sp not

in chat windows show message "sp has decreassed by 0".

[Master Toma]

if (talker.sp >= 30000 && OwnItemCount(talker, @adena) >= 650000) {
                if (DeleteItem1(talker, @adena, 650000)) {
                    IncrementParam(talker, @PARAM_SP, -30000);
                    PledgeLevelUp(talker, 1);
                }

[Master Toma]

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