values (Id,RAI_id)can be inserting null

Question

I have 4 tables

Orders table with fields OrderId, OrderName,OrderDate,Description

Items table with fields Id,OrderId and Name

subitem2 table with fields aid,RAI_Id and text

subitem4 table with fields aid,RAI_Id and text

Orders can be updated succesfully if done any modifications

Right now my problem is that In Items Orderid can be dispaying null

in the same way in subitem2 and subitem4 RAI_Id is displaying null

Could you please help me

Look at my scrrenshots how data can be saved to database

Name can be saved to database

in the same way text also can be saved to database

Problem is that RAI-id and orderid can be inserting null

https://ibb.co/qY4DKRZ

https://ibb.co/9njQ75S