Arabic permalink redirect to home page

IIS has a problem with RTL-languages in URLs. Check your database and page encoding is UTF-8. After that try to put into system.webServer tag <globalization requestEncoding="utf-8" responseEncoding="utf-8" fileEncoding="utf-8" />

If it does not help you may use free WordPress plugin Custom Transliteration with Arabic Transliteration

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)