Multisite not working on ip shared with magento webshop?

Hi,
I’m trying to get WordPress multisite to work but after I map the domain with the domainmapping plugin the url doesn’t go to that domain name but to the Magento webshop.

My situation is the following:
I have hosting with one ip, on that there is a Mgento webshop with SSL certificate and a WordPress multisite website.

For example:
I have https://www.magentowebshop.nl, https://www.multisitewordpresswebsite.nl and want to make a website Newwebsite.nl.

The VirttualHost section is set for Multisitewordpresswebsite.nl:
ServerName multisitewordpresswebsite.nl
ServerAlias https://www.multisitewordpresswebsite.nl *.multisitewordpresswebsite.nl

I set an A record for Newwebsite.nl which point to the ip of Multisitewordpresswebsite.nl.

But if I go to the URL https://www.newwebsite.nl it doesn’t go to the website I made at Multisitewordpresswebsite.nl but it goes to https://www.magentowebshop.nl

I guess something goes wrong at the hosting but if somebody has an hint, it would be very appreciated.