Ok Now I will do log, after finish I will send..

do you think that is good this setting from your experience ? Auto restart SQL Server if it stops unexpectedly

I am thinking about this and maybe it is better that SQL server will be restart than frozen or something.

And please can you explain me something ?

SQL Server may stop unexpectedly due to different reasons :

Memory leaks from a process within the SQL Server memory space, such as from an extended stored procedure or from OLE automation.

and so is not missing the problem with Failover Clustering here ? Because you said 3 reasons, but from this log I see that problem was with Cluster.

Thank you.