Processing Jobs page - sort by job type fails

[bernardfazziniais]

Description
Processing Jobs page - sort by job type fails

Reproduction Steps
Steps to reproduce the problem:

1. Go to Processing Jobs page
2. sort by job type
3. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Version and Environment Details

• Client OS: [e.g. Windows 10 build 1601]
• Browser: [e.g. chrome 76.x, etc.]
• Scale API: [e.g. v6.9.0-snapshot+1d15ca7e]
  • Can be found at /api/v6/version/
• Scale UI: [e.g. v0.4.3]
  • Can be found at the bottom of the UI interface.
    Cluster details below are very helpful for problem resolution, but external Scale users aren't expected to provide.
• DC/OS: [e.g. 1.11.2 Enterprise, 1.12.0 Community, etc.]
• Marathonlb: [e.g. 1.4.2]
• Agent OS: [e.g. CentOS 7.4]
• Agent Docker: [e.g. 1.17.05]
• Agent Infrastructure: [e.g. AWS, GovCloud, On-premise]

Additional context
Add any other context about the problem here.