Issue on deleting error message in WebUI

Hi Experts,

I have deleted one standard error message in DO_PREPARE_OUTPUT  with some condition in header level but I am having below issues.

Issue one :

Now error is not showing in webui  at header overview screen but  allocated space for that error message is showing in output screen with white space.

Please help me how to remove that space.

Issue two:

When I open Item overview screen, again that message is showing in Item overview screen.

I am using the below code to delete the message and its successfully deleting the message but when I switch to other screen its again showing.
Please help me how to delete it completely on one go.

Code:

zcl_crm_ic_tools=>delete_message( iv_number = '419' iv_id = 'CRM_PRODUCT_I' ).

Method: delete_message

ls_message-number = iv_number.

ls_message-id     = iv_id.

ls_message-type   = iv_type.

APPEND ls_message TO zcl_static_reference=>gt_delete_msg.

endmethod.

Appreciate your help.

Kind Regards,

Shaik