The engine schedule has been skipped. The scheduler is overloaded

[Anonymous]

Dear people,

I get this message form the delivery engine:
The engine schedule has been skipped. The scheduler is overloaded or a job has fatal error and blocks the scheduler.

I am using the cron service from my provider, and created a job that runs every 5 min.
I stopped other cron jobs as far as I know.

I can see it is sending email through my SMTP plugin, so the sending is working.
Should I do something?

Martijn

[Author]

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