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Spinner occurs when form is in error

  • January 16, 2026
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Topic

When the "When the Form is in Error" event is triggered, it results to a spinner and does not execute the actions configured under this rule.

 

A network trace captured from the browser shows the following error message on the request which failed:
"The page cannot be displayed because an internal server error has occurred."

Failed Request Trace logs then showed this specific HTTP error coming from the request:

HTTP ERROR 500.19
Absolute physical path "C:\inetpub\custerr" is not allowed in system.webServer/httpErrors section in web.config file. Use relative path instead.


Instructions 

Please check the <httpErrors> section of the following web.config files to make sure that no absolute physical path is used:

  • C:\inetpub\K2
  • {K2 Installation Folder}\K2 smartforms Runtime\


Additional Information

Troubleshooting HTTP 500 error on SmartForms