hello guys, i think i know whats the problem is, its because server support to .phar language that caused white blank page.
i have localhost server that use indonesian language, and everything was fine. look at: https://pasteboard.co/I6nSZwO.png
then, i upload all of the files and database, ofcourse everything was same 'right? ( i do set config file ost-config.php correctly to connect database on my own server) and i got white blank. look at: https://pasteboard.co/I6nTXIA.png
after that, i remove id.phar, and booom! everything fine with default language (english). look at: https://pasteboard.co/I6nUAPD.png
so, is it hosting problems?