How can i change the texts of plugin (created by me) in wordpress admin?

i have added keywords of my plugin to hi_IN.po file and generated .mo file. Finally i found text what i added is in hindi language. and in my plugin i displayed those texts with the help of function __().

 ex:-  __("Read More") 

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