(No worries, it’s not actually moved yet, but it’s in the queue.)
I’d still chat to your SU, they might be able to advise on things like hardship loans, (although the fact that you’re not currently enrolled might affect your eligibility).
As the landlord is private they are not under any obligation to jump through hoops for you. That said, I believe it’s a long road to get you booted out and you are doing the right thing by making them aware.
Do you have any friends or family who might be able to sub you? Not a nice position to be in, but cheaper than a private loan even if you could arrange one.
Can I ask how you were planning to pay? Have your finances changed or did you not factor in when the rent was due? I’m not judging, just trying to work out where things have fallen through.