Ok so my spawning won't work in my RPG and I can't find the problem.
None.
My guess is that you should try having the monsters spawn when there is 1 Death of Spawn counter instead of 0.
Edit: I changed it to the above, and it seemed to work fine for me.
None.
This might be considered off-topic, but in the future, try to be more specific when you say things don't work. Saying what is supposed to happen, and what is happening instead, is usually a good idea. Otherwise, people have a lot of trouble helping you.
None.
Ok. So basically, the units won't spawn at all and I'm pretty sure the death count timer is working because I can't find anything wrong with the triggers that make the death count timer.
None.

I do stuff and thingies... Try widening and reducing the number of small nooks and crannies to correct the problem.
I'm sorry. But your map works for me.
Just do nothing and watch your rine for 30 seconds...
A dark archon explodes and a few units spawn on the right side of the skeleton.