Vocal puppy

Hi all, I'm not sure if this is behavioural issue but need some help on it. My puppy sleeps in her crate at night and had quietened down once she'd settled in after first getting her. But recently she's started crying and howling again at night. Last night she was doing this constantly from about 3am until we got up at 7.30am! There was no apparent reason for it either as I tried letting her out for the toilet andc she didn't go but continued being vocal. It's starting to cause a problem as I have an 18month old she is starting to wake up and my partner when he's up at 6 for work :( any help would be greatly appreciated.
Thank you in advance.
Sammi x

How old is the puppy? How long have you had her? Where is the crate located? How long has this behavior been going on?

She's almost 5 months old and we've had her approximately 4-5 weeks. Her crate is in the kitchen so away from most distractions. She started this when we first got her but put that down to anxiety and being in new surroundings as we had it with our other dog when we first got him. After a week and a half she settled down and only did this behaviour for ten mins max and sometimes not at all. It all started again a few days ago when we got back off holiday. Shed been staying with my sister in law where she didn't do this at all! We are completely stumped and stuck for ideas :(

Move the crate into your bedroom at night. If she's potty trained and doesn't chew inappropriate items, no need to put her in the crate at night.

Unfortunately she's not fully toilet trained yet, she seems to be struggling. Were not sure if that's due to the fact she was an outdoor dog before we got her? Chewing doesn't seem to be a problem just the vocals

If she's not potty trained, then she needs to sleep in the crate. Move the crate to your bedroom. Being an outdoor puppy until you got her MIGHT make her a LITTLE more difficult to potty train but still it shouldn't be real difficult. She'll catch on eventually.

Thank you. We'll try her in the bedroom and see how she goes. Will let you know how we get on :) ok thank you, we'll persist with the praising etc when she's going to the toilet in the right place until it clicks with her. Hopefully all will fall into place soon :)
Thank you again for your advice :)

Well we've survived another day :) lol. We had princess in her crate in our room and we all slept soundly, quietly and accident free! :D yay! Lol. Thank you so so much for your help as this seems to have solved the vocals and perhaps a step forward with the potty training too :) fingers crossed anyway lol x

My mother had young dog that wouldn't settle at night. She left the dog in a cage but with a radio on quietly at nght. It was helped to calm the dog and after a while the radio was no longer needed.

I think mostly it's the nearness factor, and hearing that it worked here proves that again. They really just want to be close.