I installed DataFlex Reports 7.0 on the webserver, I have deployed according to the documentation.
When running on the server i get this error:

Received HTTP error 500 Internal server error while loading URL webservicedispatcher.wso/callaction/json.

In the reports/cache there is no file created.

Is it something with the rights of the reports and cache folder, what rights should be set?

I have checked and using the ReportPath function to force the path of the report, it works locally but not on production server.

Any hints would be greatly appreciated.