Hello Hossam,
Can you check your arabic language file on your site and see whether the language is 100% translated or not. This language file is located in site/language/###/###.com_easyblog.ini . If this file is not 100% translated, you can translate it by yourself. Replace ### by your language file.
If you unable to locate this file, can you please provide us with backend access and ftp access as well so that we are able to assist you on this issue much quicker.
Hope this will help.
Thanks.