As stated before by others, same issue.
But really what a horrendous update to push … that only seems to work with woocommerce. And I can stand by that seeing that you literally check for “manage_woocommerce” as a capability for displaying the actual admin menu item. + so much more making this for what it seems a woocommerce only plugin in th 1.4 state.
It never was that, It never was announced that it would change to that. So what where you expecting with this release except for a lot of dissatisfied and angry replies.
A lot of websites, not webshops which dont need nor want woocommerce on it now have a broken setup thanks to this mess.
Please consider fixing this and make woocommerce optional as noted by others as well. Or go the route of being woocommerce only, but then dont make this a direct update to an otherwise fine working plugin. Then just promote the now woocommerce only one in an update to the original plugin and get your specific woocommerce based customer base in such fashion.
For anyone reading; If you have this issue go here; https://www.ads-software.com/plugins/email-templates/advanced/ scroll down and at previous versions select 1.3.2.1 just Upload this through New Plugin in WordPress and replace.
And by all means leave the developer a message noting how screwed up this is…
Sorry guys but you called this upon yourselves.