The keyboard behaves very strangely. Can you help?

Question

HTML

Hello.
I have a Logitech G910 keyboard. She's about a year old, maybe a little more. An hour ago, I was sitting at the computer, playing Diablo 3, then the keyboard itself began to press enter, the “5”, “/”, “/” buttons, the mute and unmute button.
I turned it off, connected it to my laptop, it slowed down terribly. When you try to click something with the mouse, it feels like the shift is stuck, everything is highlighted.
I connected it to a macbook, the same situation, it also began to slow down. And the sound turned off on it, I could turn on the sound only after rebooting the macbook.
Tell me, please, what to do. :(

Answer 1

Go to the source code of the site, you can through the browser "F12" and find this object. Then just go to the index.html or index.php file (you may have a different name) and delete the line you need.

Answer 2

You just have the debug plugin activated https://scrollmagic.io/docs/debug.addIndicators.html
It must be disabled, removed from the call to js

Answer 3

Repair this keyboard or buy a new one.

Answer 4

Contact Logitech, record the process of destroying the keyboard on video (with a hammer, for example), they will send a new working one.