Run this Script
-- Use the Master database
Use Master
-- Verify that database has issues
EXEC sp_resetstatus 'SharePoint_Config'
-- Put the database in emergency mode
ALTER DATABASE SharePoint_Config SET EMERGENCY
DBCC checkdb('SharePoint_Config')
-- Set the database in single user mode
ALTER DATABASE SharePoint_Config SET SINGLE_USER WITH ROLLBACK IMMEDIATE
-- Repair the database with data loss
DBCC CheckDB ('SharePoint_Config', REPAIR_ALLOW_DATA_LOSS)
-- Set the database in multi-user mode
ALTER DATABASE SharePoint_Config SET MULTI_USER
--...
