The Patient Set Viewer and other ACT software requires a working directory. Here the software creates and updates files for background jobs, caching, and other tasks. The software needs create and write to this working directory.
In the ACT_config.php file, we have provided a default location for your working directory. It is: /opt/viewer_jobs. You can provide the correct access by:
Make sure web (HTTP) access is not allowed to this directory
At least 0.5 Gigabyte of space is recommended for your working directory