Unfortunatley HubSpot CTA / Forms aren't really built to trigger a pop up. They're best at taking the visitor to the form on another URL. I'm unfamiliar with AddSite so can't suggest a workaround for that CMS in particular. BUT there are some workarounds in this thread (check all the replies!): https://community.hubspot.com/t5/CMS-Development/Popup-HubSpot-form-on-CTA-click/td-p/196910
You've got two options really
1. Throw away the idea of pop ups on CTA clicks because it's really difficult 😞
2. Start reading that thread above and run some experiments, I'm sure you'll find something!
Unfortunatley HubSpot CTA / Forms aren't really built to trigger a pop up. They're best at taking the visitor to the form on another URL. I'm unfamiliar with AddSite so can't suggest a workaround for that CMS in particular. BUT there are some workarounds in this thread (check all the replies!): https://community.hubspot.com/t5/CMS-Development/Popup-HubSpot-form-on-CTA-click/td-p/196910
You've got two options really
1. Throw away the idea of pop ups on CTA clicks because it's really difficult 😞
2. Start reading that thread above and run some experiments, I'm sure you'll find something!