How do I activate my Pixel?

Hi! I have installed the plugin and went through exactly the same steps of your tutorial at Facebook Business page. However, it’s been a few hours and my pixel is still “inactive”. I used your Chrome extension “Facebook Pixel helper” and it has found my one pixel in my site. I’d like to know what’s going on.

How do I make it active in the Facebook Business page so I can start with my ads?

Thank you in advance!