Translation widget (Systran) stopped working

I use 5 European languages on a regular basis and since October 2018, this widget has stopped working, which slows me down enormously. I do hope this is not another case of Apple changing more quickly than the users want? Any clues if this can be unstuck or whether there are alternatives please?

I would like a widget or a tiny app because I don't always want to open a web browser when using other high intensity applications.