I found a backup error with tar command. This is caused by permission of zp-data/PHP_sessions folder. It is 311 (read denied) in my environment.
zp-core/setup/index.php (around L28)
@mkdir(dirname(dirname(dirname(__FILE__))) . '/' . DATA_FOLDER . '/PHP_sessions', $chmod | 0311);
$chmod variable is not defined in this source.
Q1: Is this the intended movement?
Q2: Is this for security reason?
Side note: Session data is saved correctly. However, I am concerned about system update, etc.
Best regards.
Comments
The undefined variable is probably a bug