Problems with Site Kit configurations

Hello,
I am trying to configure Google Site kit for my wordpress (https://forotic.es).
I install the plugin, activate it and when I go to configure I get the message:
“It looks like your site URL has changed. To continue using Site Kit you will need to reconnect so that your plugin settings are updated with the new URL.”

• Old URL: https://forotic.es
• New URL: https://www.forotic.es

I hit reset Site kit, follow the steps:

• select my gmail account
• It tells me that Site Kit already has some access (7 services).
• In the Site kit configuration
• You already have verification (Google has detected that you are a verified owner of ICT Forum.
• I activate the metrics in my control panel (allow)
• It tells me that ICT Forum has been added to Search Console

When I finish, it comes back to my wordpress and I get the Site kit screen.
It says: connect service and a selector that says “Account”. I scroll down and I only get the option to “Set up a new account” (the “Full configuration button is disabled).
I click on Configure new account and I get a form (already filled in) with the data:
Account: ICT Forum
Property: http://www.forotic.es
Web data flow: http://www.forotic.es
I click the only available button (Create account), but it does nothing.

I don’t know if it has to do with the url and it makes a mess between “https://www.forotic.es” and “https://forotic.es”.

I don’t know how to fix it.

I have tried uninstalling the plugin and starting over and the same thing happens. I have gone to Google Analytics from my gmail account and created the property by hand but it does nothing.

Can you help me?

The page I need help with: [log in to see the link]