Short Answer: You shouldn't and you'll get no support doing so!

While it has worked for some people on shared hosting, PlayerServers is only supported on a VPS or Dedicated Server because it starts new servers and binds to new ports, which would most likely conflict with other servers on a node if you don't have control of it.

Many issues can arise when using shared hosting such as servers not starting, servers starting very slowly, lag, and the host could kick you off their service if it is against their TOS to start new servers or use a plugin such as PlayerServers to bypass their limits. Because of this, I will NOT support anyone using shared hosting, and will NOT be held responsible when issues arise because of it.