Would you bother a friend who ghosts?

I have a particular friend who, for the last 3 months, has been very difficult to get ahold of. He lost his job due to not showing up and not calling. He pulled this several times until the boss finally said he was done covering for him especially because he never gave a reason for not calling or coming to work. I have asked him to hang out and he seems excited and willing to. He has even suggested hanging out and things to do. But the day we were supposed to get together he won’t call or respond to me. When literally the night before we had a nice conversation and he said he would call in the morning. He is very shy and quiet. I worry about his mental health mostly and wonder if bothering him after he keeps ghosting is the way to go about things. Honestly I would never consider continuing to bother someone if they ghost but I feel like he has some issues and maybe needs someone to keep pushing him? He may be drinking excessively or maybe he is video game addicted. I usually call him on Friday and he rarely picks up. Should I try calling him again even though he ghosted our hang out last weekend? Do I text him? Or leave him alone?