Players droping, server split issues

Hey, i have 2 maps, they are almost the same the main diferences are size (the one with problems is twice as big as the other one), a few quests, and a trading system (which i havent touch for months so this could not be the problem), the main systems are equal for both maps. The problem is that the biggest map is making players drop or causing the server to split (it wasn't always like this, the map used to work fine), i realy have no idea what could be causing this error and why it doesn't happend in the other map (both maps are updated at the same time). Any clue or direction of where or what should i look for? this issue is very recent so i libe it must be a simple mistake in my code.

Thanks!

PS: Server splits when game starts

Disable triggers until it stops. If you have a lot, then disable half to find which half the problem is in, then disable half of them, etc. until you find it.

map ? war3map.j ? so we can analyse it ? (war3map.j is better)

and maybe we can find the source of desync(s)