The reason why you have the error below when downloading a PDF is the missing PDF notification settings set.

unable to open a file '/tmp/pdfname.pdf': -1
Error Code: 0x0abcac97.
Report ID: 1234567

Solution

  • Go to classic control panel by clicking in the right top corner

  • (Billing) > System > Settings

  • (System) > Notifications > Common Notification Settings

  • EDIT

  • Goto 'PDF Templates' and set these default values:

    • Invoice PDF Template: 'Invoice pdf notification'

    • CM PDF Template: 'CredeitMemo pdf notification'

    • DM PDF Template: 'Invoice pdf notification'