my mod for a server? anyone knows who i can do it?

hi all comunity, how you can see i have a little problem, first i want to say i have a two projects in development, first thing i do a mod for my minecraft server with other mods like DBC from jinryuu, and the problems its here, when i try in minecraft singleplayer all looks good but when i put the mod in my mod carpet from server and its initialized only stay on for a few seconds and later truns off, dont know why happen this.