Allowed memory size exhausted

This is a site issue – not a plugin specific one. A quick search of these forums would have provided you with the answer. Try increasing the memory available to PHP.

Well the memory limit has been increased to 1024M https://www.dropbox.com/s/tk7cdp851h6xocm/Screenshot%202014-01-09%2011.20.16.png and still getting an error

I’m not an expert, but maybe it has something to do with your hosting server limitations. Especially if your’re using a shared hosting. So even you’re setting it high, the server itself limit the memory resource for you to use.
I don’t know, I can be completely wrong.

Other alternative solution I used is to setup a local server in my computer using wampserver, and go through the translation process there. And then I upload the translation files to my hosting.