Unable to verify table changes. To validate table changes for potential data loss, the specified running server must communicate ...

Unable to verify table changes. To validate table changes for potential data loss, the specified running server must communicate with a SQL Server.
The NAV Service SQL Command Timeout period elapsed prior to completion of the validate operation. The statement has been terminated.
This may be because the tenant was not synchronized prior to the validation, the service is still processing the operation or the service was unable to send a reply message. 

Server Name:         {0}
Server Instance:     {1}

Please consider increasing the SQLCommandTimeout setting in the NAV Service configuration file and ensure that the service is able to connect to the client.