Couldn’t connect with these settings Not Acceptable

Hello,
I can’t log in to WordPress using the application password either on n8n in the cloud or locally. I don’t know why. I keep getting the error:
“Couldn’t connect with these settings – Not Acceptable”
This happens on two different websites, but they are hosted on the same server.
The credentials are 100% correct. I have no idea what the issue is.
On my computer, I’m using n8n version 1.98.1.
Please help – I’m completely lost and don’t understand what’s going wrong.

Hi Kompulsator_Polska Are you using ModSecurity or another security plugin?