Super partition Coreelec 20.5 on Amiko A11 Gold

I have installed CE 20.2 with no problem
when I install the 20.5 Version, I have the message “super partition not found”, and any media is visible
what can I do please ?

What you don’t understand?

I don’t know what I should do to fix the problem?
for information, with version 21.0, I still have the message, but the videos are played correctly

Android must be reinstalled

I can’t find the firmware on their site, but there is an update (beta version)
do you think it might be useful to install it?