HTTP Error 500.19 - Internal Server Error

The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information:

Module   DefaultDocumentModule
Notification   ExecuteRequestHandler
Handler   StaticFile
Error Code   0x800700b7
Config Error   Cannot add duplicate collection entry of type 'add' with unique key attribute 'value' set to 'index.aspx'
Config File   \\?\D:\home\h467742.winp037.arubabusiness.it\farmaciacomunalesangiorgiomn.it\web.config
Requested URL   http://farmaciacomunalesangiorgiomn.it:80/?prodotti2_Pagina=3
Physical Path   D:\home\h467742.winp037.arubabusiness.it\farmaciacomunalesangiorgiomn.it
Logon Method   Anonymous
Logon User   Anonymous

Config Source:

   66:             <files>
   67:                 <add value="index.aspx" />
   68:             </files>

More Information:

This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error.

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