Can't upload PDF files in galleys

[marc]

Looks like a permissions issue.
Check your “/home/gtaorguk/ojsdata_thss” folder and review if it’s fine.

Documentation details it:
https://docs.pkp.sfu.ca/admin-guide/en/troubleshooting#permissions-file-access-etc

This post from Clinton’s is still valid:

How should file permissions be set?

There isn’t a straightforward answer because so much depends on your hosting environment. Start with your hosting provider’s documentation and support, or with your system administrator, and with the following instructions: How to set your permissions In general, you want your permissions set such that your webserver can read and write (recursively) to config.inc.php's files_dir, and to ./cache/, and ./public/. Optionally, for added features and reduced security, you can enable write to confi…

Cheers,
m.