Error when saving ZML code in Creator pages - "Cannot resolve the name 'panelType' to a(n) 'type definition' component."

Error when saving ZML code in Creator pages - "Cannot resolve the name 'panelType' to a(n) 'type definition' component."

Recently when trying to edit the ZML coding of page panels, we are receiving the error message:

"Error found in line number 5 : src-resolve: Cannot resolve the name 'panelType' to a(n) 'type definition' component."

This error occurs regardless of which page we are editing, and also occurs when creating a completely new application from scratch.  The error also occurs regardless of the ZML coding that is present in the panel.  In the attached screenshot, we added the default Panel template object, and tried to save the ZML without making any changes to the panel itself.

This error is also occurring for multiple users signed into ZoHo with different accounts.

We have previously been able to edit ZML coding on our applications without any issue; this error message has only been occurring recently.

Has anyone else experienced this issue or know of a solution?

Thank you in advance!