by Juan Leyva.
Hi Basem,
it seems your device is running Android 2.x, unfortunately for those version only the Moodle Mobile 1.x versions are available.
Those versions are not maintained or supported anymore since they are quite old (we use now the Ionic Framework that is not compatible with that version).
If it's possible, you should try to update your Android device to Android 4.0 onwards
Regards, Juan