Can't use my acid on web

[Lizard]

Hi guys.

I've used AddUseItemCallback many times before, with no errors, but this time it just wont work, and i can't really see why.
I keep getting "Cannot use item this way"

Im hoping that you guys would help me a little


void OnEnter()
{
AddUseItemCallback("", "glass_container_1", "acid_container_1", "giveacid", true);

AddUseItemCallback("", "glass_container_mix_done", "web_1", "burnweb", true);

}


void giveacid(string &in asItem, string &in asEntity)
{
RemoveItem("glass_container_1");
GiveItem("", "glass_container_mix_done", "glasscontainermixdone", "glass_container_mix_done.tga", 1);
}


void burnweb(string &in asItem, string &in asEntity)
{
SetPropHealth("web_1", 0);
}

I've also checked for name errors

I've also tryed, to change name of the container used in the burnweb function "glass_container_mix_done" to "glass_container_mix_done_1"