Error while opening search result types in SharePoint 2013

I have a Search Service application and i want to customize how my search results look. I have a customized display template as well. But when i open my Search Result types i get an error saying Something went wrong.And also none of the managed properties can be seen. I looked for logs and the log says, **

• Error executing stored procedure proc_MSS_GetResultItemTypes: System.Data.SqlClient.SqlException (0x80131904): The target principal name is incorrect. Cannot generate SSPI context.
• Error retrieving ResultItemTypes from the admin db: System.Data.SqlClient.SqlException (0x80131904): The target principal name is incorrect. Cannot generate SSPI context.
• QueryPipelineDatabase:HandleSqlException - Exception: System.Data.SqlClient.SqlException (0x80131904): The target principal name is incorrect. Cannot generate SSPI context.

Can somebody please help me with this.

I found the issue and the solution was my Default content access account's password in my Search Service Application had expired and we updated the password and it started working