It sounds like your new pup is having confidence issues. This is common in small dogs.
To help make the crate a positive thing, start feeding your dog in there. She may not want to go in at first, but when she is hungry enough, she will. Also give her treats and lots of praise when she goes in. Start to associate a command with the crate as well. I like to use "Go to bed".
Don't force her in, just put the bowl just inside the first time so all she has to do is put her head in. Go half way the second time and then the whole way. Praise her everytime she moves in the crate's direction. Lots of praise and "happy talk" (high pitch voice) will boost her confidence and encourage her toward the crate. When she is finally in, don't close the door right away. Sit there and pet on her while feeding her treats (tiny pieces of hotdogs are great for this). Then let her back out. Do this a couple of times. When your ready to close the door on her, put a dog bed or blanket in there for her. Before she goes in, place a couple of treats on top and hide a few around the kennel under the bedding. This will keep her busy looking for treats while you close the door and quietly and calmly walk out of the room.
Feel free to PM me and I will give you my phone number. I train dogs and want to help you out with your new addition.