Does Not Start Car Will Not Start

Hi guys, yesterday I left the car as normal, but when I tried to start the car this morning it gave many errors and the car did not turn on. In fact, the window on the right is half open now, because the electrical parts are not working. I left the video below. Why this problem happens, how can I solve it? Thanks in advance. Video link: https://gofile.io/d/sprOhn

If the battery is dead, many such errors may occur.