Crystal reports problem

I have a VB6 application that uses reports created with Crystal Reports 8.5. I have the error message of "Failed to export the report" when I try to export the reports in PDF, on the machines where the application has been deployed. I'm looking for a real Crystal expert that already knows this problem and exactly how to solve it. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform All windows versions