No explosions?

On my bukkit server, I cannot blow up tnt or creepers. I do not like this. My plugins are: essentials, morephysics, kivi, BKcommonlib and traincarts, nolagg, death and rebirth, and vault. I looked through them, but couldn't find anything. Help?

 

Look through 'Morephysics' and NoLagg again, im pretty sure it'll be one of them

 

morephysics didnt have any tnt things, and nolagg had tnt set to true.

 

Also check out essentials, it supports it.

 

tnt randomly started working again!

 

1st try without plugins than if it works add 1 plugin and restart server and see if it helps if it does than add another plugin reset server and check again and so go on