I haven't been able to either. For about a week. When I click on career it takes me to a page to buy the games. I hope they fix this soon.
The App seems not appear any more on Google Play :
The installed app has zzSUNSET in the name (visible in My Applications) :
And it saids that I have SW Battlefront Companion installed ; strange
It hasn’t been a fast fix so far. I fear the future of the companion app will be limited and one day, very soon, will probably cease to function completely.