Your software
My Mautic version is: 2.1.6
My PHP version is: 7.2
Your problem
The Citrix plug-in works for syncing/segmenting the lists, but does NOT work for STAND ALONE FORMS.
Steps I have tried to fix the problem:
• Cleared Cached for Mautic
• Reauthorized GOTO plugins
• Removed integration with GOTOWEBINAR via Zapier
• Removed integration with MAILCHIMP via Mautic plugin.
• Tried re-ordering the ACTION steps.
• Deleted & Recreated Citrix API.
• Disactivated & reauthorized GotoWebinar Mautic plugin.
• Increased API limits
Error on the Url comes back:
?mauticError=Errors%3A<br%20%2F><ol><li>Bad%20request<%2Fli><%2Fol>#webinar__v