Some translations missing in askbug theme/plugin

There are some translations missing, I’m using askbug theme.

On Categories page next to category name “(0 Questions)”, how to translate?
http://amzlx.de/questions/category/echo-und-echo-dot/

On Question form:
“Type and hit Enter” and “Attach file hochladen oder add from link”
http://amzlx.de/questions/ask/

On Homepage categories widget, where to translate “Question” and “Questions”?

http://amzlx.de/