Email Notification Failure in OJS Website

I’m encountering a problem with my OJS website where it’s no longer able to send email notifications. The error message indicates that email notifications failed to send, and it suggests trying again later. What might be causing this issue?
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Hi @Samuel_Makoholi,

Can you please indicate which specific version you’re using (e.g. 3.3.0-13)? Also, you may want to check your configuration, as well as the troubleshooting advice offered here: https://docs.pkp.sfu.ca/admin-guide/en/deploy-email

-Roger
PKP Team