Can’t upload submission files OJS Software Support submission on OJS 2.4

I’m experiencing that I can’t upload the ojs file,OJS 2.4 version

permissions have been changed to 755

then always uploaded files don’t appear

config files_dir is correct

where is wrong?

file sub no

Hello @Cholid_Mawardi

Please note that the version of OJS that you’re using is no longer maintained or supported by PKP. I recommend that you upgrade to the newest version of OJS. However, other community members may wish to offer assistance with your question.

You may find the following resources helpful in preparing for and performing the upgrade:

These resources will introduce you to OJS 3 and how it is different from OJS 2:

Best regards,

PKP Team