Non-admin users don't have the permissions to the folder containing the links for the inquiries.

Verify user permissions for the Base path folder

1. Go to Administration and Job Poll Configuration.
2. Select the Attachment Sync and click Edit.
3. Verify the user permissions for the Base path location.
4. Click OK.
5. Click Run Now.
    NOTE: You can select View Log to confirm whether the attachment sync job ran and completed.
6. Click OK and then Done.

If the attachment sync works, you don't need to complete the remaining steps. Continue to the next option if the attachment sync still doesn't work.

Change the path for full control

1. Go to Administration and Job Poll Configuration.
2. Select the Attachment Sync and click Edit.
3. Change the UNC path to a location with full control permissions for the users. 
4. Change the Reset Paths to True.
5. Click OK.
6. Click Run Now.  
7. Click Done when the attachment sync is complete.
8. Double-click the attachment sync job and change Reset Paths to False.
9. Click OK and then Done.