Lifecycle, Workflow. New ItemType

My requirement: Submit > Review > Verify > Status Created a Lifecycle: Submit     >   In Verification    >  Verified  > Pending > Closed      v                           v Rejected       Unverified Created a Workflow: Start > Review DOC > Verify DOC > Approve > Pending                        v                           v                    Rejected          Unverified I have Created a new ItemType called “Docs”. Included “Properties” “RelationshipTypes” “Views - Forms” “Lifecycles - ‘Docs’” Trying to create a workflow related to “Lifecycle - Docs”...... I have defined all “activity” and “promotions” based on the “Lifecycle - Docs”.... When i click “save,unlock&close” it shows following error…. Cannot insert the value NULL into column 'CONTROLLED_ITEMTYPE', table 'InnovatorSolutions.innovator.ACTIVITY_TEMPLATE_TRANSITION'; column does not allow nulls. INSERT fails. The statement has been terminated. in SQL: INSERT INTO [ACTIVITY_TEMPLATE_TRANSITION] ( [BEHAVIOR],[CONFIG_ID],[CONTROLLED_ITEMTYPE],[CREATED_BY_ID],[CREATED_ON],[CURRENT_STATE],[EVENT],[GENERATION],[ID],[IS_CURRENT],[IS_RELEASED],[KEYED_NAME],[LOCKED_BY_ID],[MAJOR_REV],[MANAGED_BY_ID],[MODIFIED_BY_ID],[MODIFIED_ON],[NEW_VERSION],[NOT_LOCKABLE],[OWNED_BY_ID],[PERMISSION_ID],[RELATED_ID],[SORT_ORDER],[SOURCE_ID],[STATE],[TEAM_ID] ) VALUES ( @p0,@p1,@p2,@p3,@p4,@p5,@p6,@p7,@p8,@p9,@p10,@p11,@p12,@p13,@p14,@p15,@p16,@p17,@p18,@p19,@p20,@p21,@p22,@p23,@p24,@p25 ) What is this error? I am new to Aras? Anybody plz help me…...