New npc adding

Hello,I've found a tutorial how to add new npcs and I followed every single thing from there and I'm stuck..When I launch srgameserver it says 'overlab job ..etc''
I suppose is something wrong in DB but I checked every single thing.
Any help would be appreciated;thank you .*kisses*

Are you sure that overlap job exception error is caused by new NPC? Is it just NPC or it's with some kind of shop inside?