Can I Lock Out My Non-Paying Sub-Tenant?

I’m currently renting an apartment from a property management company and sublet one of the rooms to someone while I also live in another room in the same unit. The sub-tenant is on a refugee visa in Canada and has been here for a few months now.

They recently told me they can only pay part of the rent each week but won’t commit to a specific amount or payment day. I’m still responsible for the full rent to the management company and I would be fined monthly for not paying full rent.

I know the formal eviction process in Ontario can be long and I cannot cover the extra costs out of my own pocket. Can I change the locks and evict them myself?

If I give notice to my property management that I’m vacating, does that automatically force my sub-tenant to leave as well? Or could they still stay on despite me moving out?

I’m not trying to be insensitive to their situation, but I also can’t afford to lose money every month.

Any advice or shared experiences would be greatly appreciated.