Smtp is not working how can I solve it?

hi guys !

I’m using ironwood.master with devstack.
I set the smtp settings. and I reset my password. but it was not working.
I refer to https://blog.lawrencemcdaniel.com/open-edx-setup-smtp-email/

I had logs these.
edx.devstack.lms | [07/May/2020 09:03:25] “POST /password_reset/ HTTP/1.1” 200 282
edx.devstack.lms | [07/May/2020 09:03:25] “GET /static/paragon/static/static/af7ae505a9eed503f8b8e6982036873e.woff2 HTTP/1.1” 404 1902
edx.devstack.lms | [07/May/2020 09:03:25] “GET /static/paragon/static/static/fee66e712a8a08eef5805a46892932ad.woff HTTP/1.1” 404 1899
edx.devstack.lms | [07/May/2020 09:03:25] “GET /static/paragon/static/static/b06871f281fee6b241d60582ae9369b9.ttf HTTP/1.1” 404 1896

What’s wrong in my edx?? please tell me.