Error 403 make.com (integromat)

[chemaprados]

Server operating system version

Centos 7

Plesk version and microupdate number

18.0.58

I want to connect a make.com or Zapier service to the WordPress service I have installed on my Plesk server in Ionos. I created a clean WordPress for testing, and it's completely clean without any plugins. It's only installed with the provider's connector plugin for testing. I find that I can't access either of them, because I get a 403 error. The .htaccess is by default, and I don't have any Fireworks, Cloudflare, or any security system configured on the server. Does anyone know what could be happening or how I could check in Plex what's blocking access to those servers to return a 403?