@marcel500
You have only removed the files manually, but not the e2 package
Do this
opkg remove enigma2-plugin-extensions-openstore-mymetrix
Thanks! What about this question:
2. I read inside this forum that the installation is possible via BH Addon Server, I looked it up but can't find the Addon Server (inside plugins??). Can somebody point me please in the right direction or do I need to install something else first?