Error accessing data store entity: View.... Please contact a system administrator for additional details. (APNX-1-4505-026)

I am getting below error in a node where export CSV "Export data store entity to csv" we are using to export from view.

I have checked the view performance ( which is good) and the table data its having only 3800 rows .

I am not able to find out the reason of failure as this error is not captured in the tomcat.stdout log.

Security is also fine , sometime this node gets restarted after 15 restart but now its not getting restart also 

this is azure one cloud DB where primary is in USA region and Appain server is also in USA but now secondary DB in Europe

Europe DB we are migrating to USA but secondary should not matter evenif we are using fail-over URL in APPIAN connected system,

Only solution I can think of to hard code primary db url rather than fail-over url but this is not logical as secondary DB ,which is in Europe is deactivate DB

Error accessing data store entity: PaymentRequestCsvOutputView. Please contact a system administrator for additional details. (APNX-1-4505-026)

Any pointer to check any other thing which I have not think of will be helpfull.