It seems like that is bug, for now I've help you override these following language constant translation into your language override file.
JoomlaFolder/language/overrides/ru-RU.override.ini
COM_EASYSOCIAL_ROUTER_DASHBOARD="dashboard"
COM_EASYSOCIAL_ROUTER_PROFILE="profile"
COM_EASYSOCIAL_ROUTER_ALBUMS="albums"
COM_EASYSOCIAL_ROUTER_PHOTO="photo"
COM_EASYSOCIAL_ROUTER_PHOTOS="photos"
COM_EASYSOCIAL_ROUTER_FOLLOWERS="followers"
COM_EASYSOCIAL_ROUTER_APPS="apps"
COM_EASYSOCIAL_ROUTER_APPS_USER="user"
COM_EASYSOCIAL_ROUTER_STREAM="stream"
COM_EASYSOCIAL_ROUTER_LEADERBOARD="leaderboard"
COM_EASYSOCIAL_ROUTER_FRIENDS="friends"
COM_EASYSOCIAL_ROUTER_LOGIN="login"
COM_EASYSOCIAL_ROUTER_POINTS="points"
COM_EASYSOCIAL_ROUTER_NOTIFICATIONS="notifications"
COM_EASYSOCIAL_ROUTER_BADGES="badges"
COM_EASYSOCIAL_ROUTER_REGISTRATION="registration"
COM_EASYSOCIAL_ROUTER_UNITY="unity"
COM_EASYSOCIAL_ROUTER_USERS="users"
COM_EASYSOCIAL_ROUTER_USER="user"
COM_EASYSOCIAL_ROUTER_CONVERSATIONS="conversations"
COM_EASYSOCIAL_ROUTER_ACTIVITIES="activities"
COM_EASYSOCIAL_ROUTER_DASHBOARD_FOLLOWING="following"
COM_EASYSOCIAL_ROUTER_DASHBOARD_EVERYONE="everyone"
COM_EASYSOCIAL_ROUTER_DASHBOARD_ME="all"
COM_EASYSOCIAL_ROUTER_DASHBOARD_LIST="list"
COM_EASYSOCIAL_ROUTER_DASHBOARD_FILTER="filter"
COM_EASYSOCIAL_ROUTER_DASHBOARD_APPFILTER="appfilter"
COM_EASYSOCIAL_ROUTER_DASHBOARD_FILTERFORM="filterForm"
COM_EASYSOCIAL_ROUTER_DASHBOARD_LAYOUT_HASHTAG="hashtag"
COM_EASYSOCIAL_ROUTER_DASHBOARD_CUSTOM="custom"
COM_EASYSOCIAL_ROUTER_DASHBOARD_HASHTAG="hashtag"
COM_EASYSOCIAL_ROUTER_DASHBOARD_BOOKMARKS="bookmarks"
COM_EASYSOCIAL_ROUTER_DASHBOARD_STICKY="sticky"
COM_EASYSOCIAL_ROUTER_DASHBOARD_RSS="rss"
It should work fine now.
By the way, i will log this issue into our issue tracker.