After trying to upgrade, I get this error now.

Error: Cannot find module 'email-templates'

    at Function.Module._resolveFilename (module.js:326:15)

    at Function.Module._load (module.js:277:25)

    at Module.require (module.js:354:17)

    at require (internal/module.js:12:17)

    at Object.<anonymous> (/usr/src/adapt_authoring/lib/mailer.js:3:21)

    at Module._compile (module.js:410:26)

    at Object.Module._extensions..js (module.js:417:10)

    at Module.load (module.js:344:32)

    at Function.Module._load (module.js:301:12)

    at Module.require (module.js:354:17)