Hello, from two days my phone started going crazy. It all started from the moment he hung up (which did not happen before). Immediately afterwards, a message popped up that the interface had stopped working, I could not do anything with the phone, the touch did not work. After a while, the phone turned off and tried to add a few times, all the time only the logo of the brand appeared. After a while he surprised and everything worked normally, until some time he hung up again and turned off. What could it be? How to fix it? Thank you in advance for your help, I am green in these matters