How to FIX SQL Server Error 1732 - Cannot create the sparse column set Sales in the table Sales because a table cannot have more than o

Question

I am getting SQL Server Error 1732
 
 The Error Message says :
 
Cannot create the sparse column set Sales in the table Sales because a table cannot have more than one sparse column set. Modify the statement so that only one column is specified as COLUMN_SET FOR ALL_SPARSE_COLUMNS.
 
 
 Any suggestions [ Solution | TIPS ]  to resolve [FIX] this ?
 
  This is SQL Server Severity 16  Message
 
 
 Thanks