1, 2. If you face a problem with translation, you need to be sure that your translation files are synchronized.
Make sure you placed translation files into the /wp-content/languages/themes/ folder with correct names (language name and xstore theme suffix, e.g xstore-de_DE.po, xstore-de_DE.mo) http://xstore.helpscoutdocs.com/article/30-base-theme-translation
Button Sync (Loco Translate plugin http://prntscr.com/glemdq) allows you to synchronize your translation file with updated pot file. It means if we made any changes in template files that may affect translation or we added new string for the translation and you updated theme you need to synchronize your translation with updated files. Only after synchronization, you’ll be able to translate new strings or strings that were changed. Also, don’t forget to backup all the files before any update.
If you need any further assistance, provide temporary FTP access.
3) You can remove padding using this custom css code: