Author cannot upload the paper during submission

Hi there, we received a lots of comments outside Malaysia that they are stucked when try to upload the paper during submission process. They tried to upload both word or/and pdf formats.Please advise. The error page as below.

After the upload page showed an error message, the website is totally down and cannot be accessed unless after clear the history and cache.

Another picture…after this upload step failed, the website disable…

Hi @MYTRIBOS_Malaysia,

What version of OJS are you using? (Please include this information in your posts.) Check your PHP error log to see if anything appears there.

Alec Smecher
Public Knowledge Project Team

Im also facing same problem