Confusing Error Log !!!!

I'm having 2 error in my logs


GetDlgItem : nID=887 not Found.

&

DoFakeEquip() return FALSE



Can anybody tell me how to fix it? Any info needed please let me know.

If you added any items on server, check , if you added everything right
Or not missed something
For item need mdldyna.inc/defineitem.h/propitem.txt.txt/ spec or prop item.txt
And should be added icon in folder /item
model and texture in folder /Model , /ModelTexture

#moved

Or check your resdata.inc
This log telling that you using element with ID 887
your resdata.h have it and resdata.inc have no this

can't member correctly what this log means lel