Hi, I request you to use codebox instead of quote next time or I'll be forced to put a warn level on you.
Also please try to read script configuration next time.
Find
// Turn it on (1) means the player have to kill existing monster before can summon a new one. Low rate server player prefer to take out MVP 1 by 1
set .floodcontrol, 0;
change it to
// Turn it on (1) means the player have to kill existing monster before can summon a new one. Low rate server player prefer to take out MVP 1 by 1
set .floodcontrol, 1;
If the comment is correct then it should limit spawn flooding.