Is the hearing in 2 weeks time to attend via telephone or in person?
Have you chased your solicitor for an update as to when your legal aid funding may come through?
It could be sorted by the time the hearing comes around, in which case your solicitor does need to know about the hearing date.
I assume you did not plan to travel abroad in the next two weeks, so the PSO should not prevent you from doing anything you had planned to do?
If your legal aid has not come through, I would suggest that you prepare a short statement setting out the support you have been receiving, and why, and that you will be making cross applications once the funding is approved as you can't cope with facing your ex in court alone.
You could also consider a non-molestation order application if you feel you are at risk of harm.
Your solicitor should be able to advise you about this too - and there is no fee to make it so again if legal aid hasn't come through yet then this is something you could do alone.
I trust that this assists? Can I clarify anything further for you?