Good evening, I do not understand why but, the players who play on pc can not join my server. I use PocketMine-MP 3.6.1. Their games crash as soon as they join the server ... No error appears in the console.
sometimes this error appears in the console: 2019-02-09 [10:42:21] [Server / INFO thread]: [/86.195.155.221:59119] disconnected due to incompatible protocol version (313) Is it possible that it is a report with this bug?
That's the MCPE 1.8 protocol. It just means your server doesn't support 1.8 and so they weren't able to join your server.
Well then that's why your players can't join your server.. Their trying to connect with outdated clients. Server versions aren't backwards-compatible like that.
Tell the players to update their game. If the majority of your player base prefers to stay with 1.8, than you could use an older version of PocketMine (made for 1.8) to follow suit.