PortMiner 5.3
PortMiner now supports opening a second port while the sever is running.
This is usefulf or if you have plugins such as Dynmap, which require another port to be open if you want others to access it.
There was a configuration update for this version.
Read https://github.com/smithy212000/PortMiner/wiki/Updating-Configuration for how to solve the configuration error if you are updating from an earlier version.