Issue when I press super + a to show the apps

[Hedayatbakhshi]

Super key + a

When I press the super + a key to show the apps my Laptop is going log off automatically, I also upload the related issue. Please solve this bug, Thanks for all of the developers and designers who made this cube animation. 👍

## Expected Behavior
I don't want it to see that my computer log off automatically or reboot .

## System
GNOME 48.1 

This is the problem:

JS ERROR: TypeError: this._subSwitchers is null
    _activateSelected@file:///home/android1/.local/share/gnome-shell/extensions/CoverflowAltTab@palatis.blogspot.com/switcher.js:1054:34
    _keyReleaseEvent@file:///home/android1/.local/share/gnome-shell/extensions/CoverflowAltTab@palatis.blogspot.com/switcher.js:909:22
    @resource:///org/gnome/shell/ui/init.js:21:20

as I think : 

This error occurs when the code assumes _subSwitchers is initialized, but it's null, causing a TypeError on access.


if (this._subSwitchers) {
    // existing logic
}