How to resolve javax.jcr.RepositoryException: Invalid name or path in the error logs

Hi,

Does anyone know how to resolve 

javax.jcr.RepositoryException: Invalid name or path

errors that we see in error.log. I am using AEM 6.5 with aem forms and certain xdps are using wrong fragment path, and we can see these errors, but its not easy to trace back to the refenced form, unless we know already which form is causing this. Can anyone suggest a way to find the reference forms using this invalid path. 

Please note: As it is on Production, we dont have access to crxde. 

Thank you