First of all -
OSMC installer is an awesome and quick way to get up and running with Kodi on the Raspberry Pi, thank you!
I further installed on Kodi a repo that’s called Abeksis.com and it changed all the UI for me so I don’t have anymore the ‘My OSMC’ in the programs/system menu.
How do I get back to the OSMC menu now? I need to configure network settings and such.
I hope the system is not messed up too much then you should be able to go to Settings → Appearance → Skins and activate the OSMC Skin again.
But as the Repo may have done more harm you may want to start from scratch and stay away from 3rd party repos.
Hope you learn something from that !! content isnt always free