Pixel is not sending to Facebook

Dear Developers

The Pixel is not sending to Facebook.
When I test with Facebook Pixel Helper I get this error:

“We detected event code but the pixel has not activated for this event, so no information was sent to Facebook. This could be due to an error in the code, but could also occur if the pixel fires on a dynamic event such as a button click.”

Can you help me with the problem?

Thank you!

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