Suddenly being told to do work stuff, but I'm LCWRA

I'm on UC with LCWRA, and also get the full rate of PIP. UC never bothered me at all since I switched over from ESA. However last week I contacted UC to ask for proof of my claim so I can see a dentist. It must have triggered something because that same day they put a message in my journal saying I need to meet a work coach and start looking for work! Is this a mistake? Why are they saying this and what should i do? I am in no state to work or even look for work. They have a form I'm supposed to fill out with details of my previous employment etc so they can help me find work.