Problem with locale

Dear Community,

I am facing a problem with language selection

When I install OJS from WordPress Cpanel’s softaculous…only English is showing the locale and I can not able to add any other optional language.

When I install OJS from WordPress Cpanel’s File Manager; I can choose Multiple languages; but at that time I could’not finish the installation. At that stage, web address show HTTP ERROR 500…

Can anyone help me please

Greetings, could you solve the problem?