Hi, i hate bad translations, so i love to set my apps to english when this happens.
I found that in your app, there's a bunch of options, but english isn't one of those.. Maybe you only contemplated english as "system" option? In my case, that one shows spanish trashy translation.
Also, i offer myself to improve that spanish mess.
I hope you can add this fast and easy, as it seems to be ;)
Thanks!