As said earlier, do not try and install packages via the Android based recovery system. It won’t access the SD card properly and it’s not the correct way to reinstall OSMC.
From your photo, it looks like you’re putting in the SD card the wrong way.
I have done the same accidentally sometimes and the result is the same: the SD card is at an angle and doesn’t click in properly.
The contacts of the SD card should be facing upwards. When the (M) on the device is visible, the metal contacts should be visible, but in your photo it looks like the logo of the SD card is visible, which means it’s upside down. The logo of the SD card should be pointing towards the floor.
Like this:
