Hello, I had same problem as you described. I think the problem is that ajenti 2 uses systemd service and ajenti uses SystemV service.
Try to remove remaining ajenti 2 systemd service:
# rm /lib/systemd/system/ajenti.service
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Hello, I had same problem as you described. I think the problem is that ajenti 2 uses systemd service and ajenti uses SystemV service.
Try to remove remaining ajenti 2 systemd service: