Problems with translation and calendar

Hello there,

I've been translating EasySocial frontend language file and have encountered a few problems. The most important ones are as below:

First, for some reasons the translation does not work for various forms like registration, create event, create group and so on. As far as I can tell all of the strings exist in the language file and are translated, but they are not read when the page is generated. Perhaps they are read from the administrator language file?

Second, my joomla translation includes a non-gregorian calendar which works fine all over joomla with no special settings required. But unfortunately not in easysocial. Would you please let me know how can I fix this?

thank you in advance.