Hi all,
I have created in Dynamics 365 Marketing a Marketing form (from template) and linked it to a web page on an external site.
The form is display as designed but when I click the Submit button I get the error "An error occurred during your submission."

When check in Dynamics I see that the lead is saved.
Has anyone seen this error or before?
Installed Versions:
Microsoft Dynamics 365
2020 release wave 1 enabled
Server version: 9.1.0000.14440
Client version: 1.4.274-2002.3
Dynamics 365 Marketing 1.35.10059.2039
Any help is greatly appreciated.
Best regards, Geron