Message ID: CTL137

I have a server:
PowerEdge MX740c 
RAID Controller: PERC H745P MX 
One day errors started appearing:The storage controller RAID Controller in Mezzanine 1C is unable to communicate to the BMC because either the storage controller or BMC is not responding to the commands either because of an internal error or the bus is in an error state.

the problem occurs when migrating virtual machines or during the backup process

Do you ​​have any ideas to fix this?