using version 1.14.x on Linux Mint 19. had a very difficult tie with file permissions not allowing osTicket to run. i seem to have fixed all those errors, but am now getting this:
[Thu Feb 20 15:44:47.295747 2020] [php7:warn] [pid 1881] [client 127.0.0.1:35010] PHP Warning: Invalid argument supplied for foreach() in /var/www/html/osTicket/include/class.i18n.php on line 92, referer: http://localhost/osTicket/setup/install.php
[Thu Feb 20 15:44:47.315556 2020] [php7:error] [pid 1881] [client 127.0.0.1:35010] PHP Fatal error: Uncaught Error: Class name must be a valid object or a string in /var/www/html/osTicket/include/class.i18n.php:168\nStack trace:\n#0 /var/www/html/osTicket/setup/inc/class.installer.php(174): Internationalization->loadDefaultData()\n#1 /var/www/html/osTicket/setup/install.php(52): Installer->install(Array)\n#2 {main}\n thrown in /var/www/html/osTicket/include/class.i18n.php on line 168, referer: http://localhost/osTicket/setup/install.php