Company> Post a job> Error opening & deleting attached file

[nouratahhan99]

Describe the bug
When posting a job and attaching a file, the file is opening an error 404 page, when trying to edit the job and delete the attached file, it's not being deleted

Steps to Find the bug

1. Go to http://devalopers.herokuapp.com/login
2. Log in as a company with the below credentials:
   Email: company1@devalopers.com
   Password: Company@123
3. Go to the green button "post a job"
4. Try posting a job with PDF attachment using (+add file) blue button
   
5. After posting the job, you will be directed to the job page, http://devalopers.herokuapp.com/viewjobinfo/ , try to open the job attachment, you will be directed to an error 404 page as attached below:
   
6. When trying to edit the attached file and delete the file, then save the changes, it's not deleted.

Expected behavior
File should load normally, and attached file should be deleted upon editing and deleting it.
Common in backend and frontend