Keyboard and touchpad not responding

Hello guys, I'm using Parrot OS on an Asus G513. My problem is when I unintentionally adjust shortcuts (filled with Launcher1) automatically. However, this problem didn't catch my attention, when I used to boot live USB, after user space load any keystroke I press seems not working, from opening terminal to other shortcuts, however after like 5 min it will start to respond but each few key press screen brightness will get dimmer and dimmer, I thought it's problem with DE. now I just can press key combination (Alt + arrow) or (Mod + f) When I keep pressing return to delete, launcher1 eventually will get filled again before I realized it The only way I can adjust things now, via ssh

additional notes

1. I can type in my password normally on the lock screen

2. I can't log in via tty. Even before this incident, this is what will happen when I try to log in

hostname login: USER@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
password:@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^
login inncorrect

tty will keep printing @^ combination until i hit Ctrl + c

Things I've tried: looking at /home/USER/.config/kglobalshortcutsrc, but there's no luck, and the last modification date is May 2

Edit: add shortcut photo

Update: I've managed to adjust the shortcut by holding "return + ctrl + alt + m" . But still, I can't figure out what causes rapid input.

thanks in advance.