My problem is that it crashes and after I do a hard reset in the Chinese Wipe MMC menu, instead of the standard 32 applications, I get 57?

I have a smartphone brand **Motorola C Plus, Android 7.0.**, My problem is that it crashes and after I do a hard reset in the Chinese Wipe MMC menu, instead of the standard 32 applications, I get 57 ?*! After testing in the English menu I saw that there are log files that the system does not remove? Does the problem come from a launcher update or another program, or is there hacker intervention? After turning off the internet card, Bluetooth and wifi, the ordinary hacker could hardly enter? How to do system cleaning manually with USB cable commands from a personal computer when connected to it? I activated ADB commands, but I could not see where I install the new 25 applications for music, video and others to destroy their installation archives.