Fatal error: Uncaught TypeError: join(): Argument #1 ($array) must be of type array, string given in /home/sasa-lab/public_html/pukiwiki-151/plugin/backup.inc.php:110
Stack trace:
#0 /home/sasa-lab/public_html/pukiwiki-151/plugin/backup.inc.php(110): join('', NULL)
#1 /home/sasa-lab/public_html/pukiwiki-151/lib/plugin.php(108): plugin_backup_action()
#2 /home/sasa-lab/public_html/pukiwiki-151/lib/pukiwiki.php(69): do_plugin_action('backup')
#3 /home/sasa-lab/public_html/pukiwiki-151/index.php(23): require('/home/sasa-lab/...')
#4 {main}
thrown in /home/sasa-lab/public_html/pukiwiki-151/plugin/backup.inc.php on line 110