Problems enterprise vault - archivied mails not opened

Hi all, it's some day since i have problems with outlook clients, i cannot open an archived mail from outlook, there is a message:

"error during loading object... some functions cloud not be available" and if i click " web server is available but is not configured for evault"

 

On the evault server status i see an alert 41291,

"It is more than 2 days since any archive-enabled mailboxes on Exchange Server '' were scanned for new archive eligible items."

Mail is not being archived from the mailboxes. There is likely to be a build up of unarchived mail that will increase the mailbox sizes. The unarchived mail is not available to discovery applications.

The problem is most likely to be that Enterprise Vault cannot access Exchange Server.

i checked all the solution but i have not solved the problem. 

 

I have also cheched if system account is ok, tastk are ok, connection with exchange ok, iss on server seems to be ok...

 

Suggestions?

 

Thanks

EF