problem with some windows app

[bzhgirl]

canva : the program install, i access to the browser, i put my account and then it doesn't come back to the app.
so i can't use it .
i suppose it's a link whithin the bottle where the link back doesn't go.

emclient : the programm works perfectly except that it's impossible to licence it.

i know i can use canva with browser and thunderbird instead of emclient but i would like to make them work

thanks by advance