Good Use and habits | Errors with SSL and configuration in general

Hi,

I just became the CTO of a web-dev company in France. My predecessor gave me logs of Forge Laravel's Panel with all of our clients websites.

I realized that there were some flaws in the configuration and i hope that the community can help me.

01 - Error with SSL certificate

• I create a Wordpress website, All Ok
• I want to apply a SLL Certificate with Let's Encrypt to my new website, All Ok
• When I want to go to visit https://mynewsite.com/ there is an error saying hostname mismatch and displays another domain hooked to another website within the same server.

02 - Front-office display error

• There is Wordpress configuration in the server. The site is running but when I click on the domain associated in the websites-list Forge displays the default content : choos between creating a wordpress website or pushing a git

Love u