Unable to open analysis in the TIBCO Spotfire Web Player after upgrading Spotfire version to 10.0 or above if the Spotfire Server is installed on Windows Server 2008. 

In the Web Player when click on the “Analysis” option from the menu it displays the below error "Communication error. Contact your administrator. Error reference code: 305e8a2b-9922-4972-9b86-65cbf11fac49" 

Note: The reference code may be different.

For example:

This issue occurs if the while upgrading the existing Spotfire environment to the Spotfire version 10.0 or above on the same Operating System, Windows Server 2008 R2 which was supported up to Spotfire Version 7.14 only.

While upgrading Spotfire version to 10.0 or above they need to upgrade their Operating System as well to the below supported one as Microsoft Windows Server 2008 R2 is no longer supported from Spotfire version 10.0 and above.

Microsoft Windows Server 2016 
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012
Note: Only 64-bit versions of the operating systems are supported.