I have created a Pocketmine server on my mobile phone and can't join the server with my Ps4. I just selected a version (the newest of course), added a couple of plugins and started it. Until then everything worked out fine, but I can't join the server on the Ps4.
Did you do all of this on PocketMineMP?
And before you added PL, were you able to join?
A little tip, use aternos.org.
This Minecraft server platform is free and works.
You only have to install the right software on the server and join within 5 minutes after starting, otherwise the server will shut down again.