Sound problem...

[CoLd Bon3]

Hi, guys! I want to ask you a thing... why when my periodic trigger runs (the trigger includes a dummy spawn and then remove) i hear a 'beep' sound? Also i want to ask how i can turn off the sounds of a storm bolt missile that hits a target?

I will upload the map, because that happens when i cast the 'Evil Kiss' spell. (the spider queen has it)

Thanks a lot! I will appreciate your help!