@russ I added the password to pi-hole and generated the token from web API. New URL that appeared with that token has been added to the TriggerCMD. However, this still doesn't resolve the problem, I am receiving the same message with empty token. Can anyone help with the issue? Where to dig further? Thanks

@russ Thank you for the advice. I tried this command:
http://192.168.8.102/admin/api.php?disable=300&auth=
(auth parameter doesn't have any hashed value as I don't have a password setup for Pihole)

It works just fine if I type it manually in the browser. When I add it to the CMD GUI window command, when I run it with the start command, it shows me the message:
Empty token! Check if cookies are enabled on your system.
All cookies are enabled in the browser. What could be the issue?
Maybe this will help you- when I run the command, it appears in the browser without the last bit
I don't know, maybe I am doing something wrong as I am quite new in this field.

@russ Thank you for the reply and apologies for the late reply from my side. Is it possible to run a curl command in the triggercmd that will be able to deactivate or activate the PiHole?PiHole is installed on the Pi4 and it is accessible through a browser with an internal IP address like 192.168.8.102 from my PC. What will be the command to insert in the triggercmd command line in this case?

Good Evening, and Sorry for the repeating topic.
I am trying to control Pi-Hole on my Pi with Alexa Echo device. I have installed Triggercmd ( subscribed to it, to use commands more often.)on Windows 10 laptop . Can I enter a command (pihole_on_off.sh)that allows me to run the script on my Pi without installing triggercmd on Pi.
Sorry again I am quite new in scripting.
Thanks.