well, there is not much to tell
I receive this error
Expect log sequence '6759' but found
Microsoft Information Store\First Storage Group\E000675B.log'
I checked on the server itself and the log is gone, but I didn't do a full backup so I'm wondering why it's gone.
I called the backup firm and they told me it isn't really a problem, the backup program just checks for all the logs they expect to be on the server between full backups.
But I like to know why it's gone, I didn't do a backup of exchange with other software.
(I did do a full backup of all the entire hd's (data not just information store) with ntbackup but I don't think this can be the problem because it was several days before the error and nothing else was running.)