[PLUGIN] RotaryEncoder II

Hello.
First of all thanks for creating this plugin. It is a great extension for Volumio!
I’m building a new internet radio for my grandpa to replace the old ESP32 thing. And the old way with knobs and buttons is more easy to understand rather than touch and web.
I was playing around with encoder config changing periods per tick and GPIO settings.
it started working as a volume knob. but when I tried changing it to be Prev/Next title it fails with an error :

CALLMETHOD: system_hardware rotaryencoder2 updateEncoder [object Object]

If I try to disable it - it says :

error: [ROTARYENCODER2] detachListener: could not kill handler process

Even if I disable plugin and do a restart - it says that it is active.
If execute this command :

volumio@radio:/data$ sh /data/plugins/system_hardware/rotaryencoder2/uninstall.sh
Done
pluginuninstallend

but plugin is still there.

Hardware is a Raspberry PI 3B +
Plugin Version: 1.0.12
Volumio Version: 3.251

Even after system factory reset First config is working, but any change can not be updated, saved.

My goal is to have 2 knobs Volume/Program and start stop button.
Since it is a one time config I will try trial/error method to know a full config in order to save it once.
But maybe it can be fixed in plugin for other users.
Please let me know If I can provide more info for troubleshooting.
Many thanks,
Daniil