Crystal Reports 2008 SP4 Issues with .NET 4.6

Hello everyone

We have a critical issue with our WebForms application. We integrated the Crystal Reports WebViewer and we've seen that it doesn't work on a machine with .NET 4.6. We need a solution for this as soon as possible. We always get JavaScript errors and the design of the parameter prompt is rubbish.

We use Crystal Reports Version 12.4.0.966 (Should be CR 2008 with SP4). Is there a solution for this problem?

Thank you for your help.