Dogs are a pack animal... and she is probably very upset to now be sleeping alone.. but since you can't have her upstairs with you (try telling your mom it will stop the crying
) maybe give her less space in her crate. she could be overwhelmed with the space and try putting in a small stuffed toy for "company". Also keep in mind she might have to pee. My pup is 6 months and we still get up a few times during the night to go out. Try taking her out.. don't talk or praise her.. go out.. and put hre back in.. but i bet you she is just lonely.