After I've updated to the latest commits. This issue resolved now. Thanks for your help.
I no longer see it under the ACP panel and I need this so that my forum can send confirmation emails to my users who register.
How would I get this back?
From the github page it says to run
npm install nodebb-plugin-emailer-mandrill
however, with my luck something else will go wrong and I don't want to risk anything at this point.
If you upgraded to 0.7.3 the plugin should be still installed. Can't you access it at
If you removed node_modules then you need to reinstall it using npm i nodebb-plugin-emailer-mandrill.
The reason it doesn't show up in acp plugin list is because of the latest changes to nbbpm. See here for details.