constraint is not working

In my 2D layout of 3D design, the constraint option is not working, when i click the constraint, it shows apply and fix. Please help me to fix this and I attached the screenshot please check it. In the dialog box it prompts that the constrainsts are temporaray. if you want to make it permanent u need to active constraints swtiches before clicking ok button.   If Also it would helpful, is there any websites to learn about common problems in 3D experience.

Edu ​​​​​​​