File Upload error

[eluser]hrg.vincent[/eluser]
[quote author="CroNiX" date="1393522314"]upload dir is in a public place and has write permissions by the webserver user?

You are also passing config 2x, so something might be going wrong there. Once when you load the library, and then you also initialize() it. You should only need to do one of those.

What is the actual output of $this->upload->display_errors()?[/quote]

once I deleted 1 of the config, it still the same.
doesn't display any error message, but it keep go to if statement, that's error part.