Micorosoft Exchange 2013 CAS Search Host Controllers failed to start

Hi team, I have two CAS Server. and two mailbox DAG Exchange 2013 SP1 15.00.0847.032

suddenly my CAS01 canot start MS Exchange Search Host Controllers

I Check the event viewer to, this is the error

and this

please help team, what is the issue ?

but in production, there is no impact for OWA logon and outlook.