URBAN tequila

whenever i try to setup my private big dig server the run cmd comes up and it says error could not reserve enough room for VM and then java couldnt make a virtual machine please help D:

my tekkit crashes with 64x and 16x sucks so can someone get me one in between my pc is full of virus cuz other people use incoretctly so i cant run 64x right now so if u could get me 32x i would greatly apprecieate thx srry my typing was bad my hand is wrapped in guaz