Attachments not attaching Via SSO Webtier URL for HP SM

Hello Experts,

 

In my Environment SSO for webtier configured...

When I am trying to attach attachments without using SSO url through webtier using ess.do URL, attachmnets were attaching.. But if I am trying via SSO URL through webtier it is not attaching the attachments..I am getting below error......(Failed,,Unknown error) while attaching attachment

 

it is not showing anything error in the tomcat or sm.log files..

 

Please suggest..please find the screenshot error.

 

Regards,

 

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