Well, bootstrap is initialized by all forms of osTicket in order for it to work. If the rest of it works, then I wouldn't be changing bootstrap.php just for cron, I'd be more inclined to believe it was a PATH issue, that cron didn't have the correct environment to run the script properly.I checked github for that file (Your version is a bit out of date, maybe update?), that line contains normal PHP, valid since 5.3, so if it's not working, then your version of PHP is way out of date. Perhaps you should see if there are others installed? Who is your host? Ahh, yes, I see, 5.2.17! woah, FYI 5.3 came out in 2009. 5.2 hasn't been supported by PHP for over six years.. holy crap. Hopefully for your sake your host HAS upgraded, (you'd know, because osTicket wouldn't work at all), and it's simply the /usr/bin/php5 symlink that is pointing to an archaic version, try changing it to /usr/bin/php that might be up to date?