CrystalReport Error: CrystalImageHandler does not exist

Hello,

I migrated an Asp, netapplication with Visual studio 2019 and the framework .Net 4.8 , the application used Crystal Report as a reporting tool.

Indeed, when viewing a report with CrystalReportViewer, an error is generated and the report is not displayed properly, bellow the error:

"The file '/CrystalImageHandler.aspx' does not exist."

Do you have any idea on the source of this error?

Thank you for your reply