Opera Error. anyone has a good heart please help me.

Need your solution,
I have this opera on my windows 7, in the first place this was running perfectly great but when I’m trying to load some codes on this, this error occurred I tried to solve it but i don’t know what to do. Please help.

Opera Error
Failed to load the Unicode compatibility layer OUniAnsi.DLL because: The specified module could not be found.
OK
Thanks in advance,
