pi 3 – Raspberry Pi 3B shows a screen with an underscore in the corner

I am using a raspberry pi 3B v1.2 with a 3.5 inch kuman display as shown here. I have installed the lcd-show drivers by doing this:

sudo rm -rf LCD-show 

git clone https://github.com/goodtft/LCD-show.git 

chmod -R 755 LCD-show 

cd LCD-show/

sudo ./LCD35-show

But after doing that and enabling the spi interface in raspi-config all I see on the screen is a black screen with an underscore, image [here], (1drv.ms/i/s!AsMq2bc0Oud6sXYwMgXONl40KA4U?e=OcOek7) in the top corner of it. I have checked the sd card, it is all fine. I have also reinstalled raspbian which didn’t fix anything. I am using the official raspberry pi cable and there is no undervoltage. I always correctly switch off the pi through ssh, however just to be sure I have checked the sd for corruption and there isn’t any.

If it is any help, here is the boot log