add sqlState null check

Author: psainics

database-commons/src/main/java/io/cdap/plugin/db/DBErrorDetailsProvider.java

@@ -77,9 +77,10 @@ private ProgramFailureException getProgramFailureException(SQLException e, Error
       errorMessageWithDetails = String.format("%s For more details, see %s", errorMessageWithDetails,
         externalDocumentationLink);
     }
-    return ErrorUtils.getProgramFailureException(getErrorCategoryFromSqlState(sqlState), errorMessage,
-      errorMessageWithDetails, getErrorTypeFromErrorCode(errorCode, sqlState), false, ErrorCodeType.SQLSTATE,
-      sqlState, externalDocumentationLink, e);
+    return ErrorUtils.getProgramFailureException(sqlState == null ?
+        new ErrorCategory(ErrorCategory.ErrorCategoryEnum.PLUGIN) : getErrorCategoryFromSqlState(sqlState),
+      errorMessage, errorMessageWithDetails, getErrorTypeFromErrorCode(errorCode, sqlState), false,
+      ErrorCodeType.SQLSTATE, sqlState, externalDocumentationLink, e);
   }
 
   /**