1, We’ve update this issue to version 1.0.3 and it will available on ThemeForest soon – you will receive email notification. You can download and update version 1.0.3 for your site. After update please go to Admin >> SNS Theme >> SNS AIO >> Theme Installation >> Import Static Block to import all static blocks again. Now you can edit normal.
2, You can create file: app/design/frontend/sns_aio/default/locale/en_US(or YOUR LOCALE)/translate.csv and put content to translate. But you need update to version 1.0.3

Best Regards!