newsletter not working, linux #2739

[amanalar]

Describe the bug
Newsletter not being sent from Linux

To Reproduce
accounts have admin and checked for receive newsletter. smtp is working, test email notification works.

Expected behavior
expect newsletter to be sent out.

Screenshots
n/a

Logs (Logs directory where Ombi is located)
/etc/Ombi/Logs
2019-10-12 20:26:22.610 -04:00 [Debug] Calling Execute on job System.INewsletterJob
2019-10-12 20:26:22.613 -04:00 [Debug] Trigger instruction : DeleteTrigger
2019-10-12 20:26:22.613 -04:00 [Debug] Deleting trigger

Desktop (please complete the following information):
ubuntu-18.04.1.0

Ombi Version (please complete the following information):
v3.0.4817/linux-arm64.tar.gz
PMS Version 1.18.0.1944

Additional context
previously:
#2739

[ombi-bot]

Hi!
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