it seems your android data is corrupted...do the factory reset...if that does not work, enter into recovery and flash a new fresh copy of Android 8 ROM
А где лежит прошивка на 8 андроид? спасибо.
@Александр Максименко
The latest Dasaita update OTA ROM for PX5 and Android 8 can be downloaded from here:
HA_PX5_8.0_ota(20190428).zip (yandex.ru)
Good luck!
