I see! So, for the moderators, this should belong in Troubleshooting / Help over in the General RPG Maker board, unless you have some script that's doing something.
So, as I take it, is the only battle-related script that you have inserted into your game Tons of Add-ons? Do you have any other script that might be affecting it? If not, then tell us what exactly happens.
I can't imagine what really is happening, considering that a default battle system with absolutely no modifications (Tons of Add-ons doesn't have any battle effects on) should mean that there'd be no problems occurring. Regardless, I'm going to ask a few questions.
Does it only happen on a particular monster or does it happen with every monster? If it only happens on that one monster, maybe there's something that's making it special. Is there any special thing with the troops you've made?
If it's convenient to you, you can also create a demo and send it to us so we can diagnose the problem at hand. You could also tell us, step by step, what you did that caused this problem.