macOS error?

[dasani_]

my computer keeps printing the same number "6" without stopping. rebooting, deleting the disc and creating a new one did not help, installing a new update did not help. after a while it got worse: the mouse cursor started to disappear, the boxes that have a selection of lines started to stand out on their own. idk what to do 💔

 

[Bigwaff]

Keyboard = Bad. Replace.

 

[dasani_]

Keyboard = Bad. Replace.

hello!! when I turned off the keyboard, it was also buggy without it. I changed to the same model, but it was also buggy. without or with or with new keyboard typing 6.(