Fatal error: Uncaught Error: Call to a member function gettext() on null in D:\Inetpub\vhosts\aed.op.kmutnb.ac.th\httpdocs\calendar\includes\calendar.php:33
Stack trace:
#0 D:\Inetpub\vhosts\aed.op.kmutnb.ac.th\httpdocs\calendar\includes\setup.php(121): __('Invalid year')
#1 D:\Inetpub\vhosts\aed.op.kmutnb.ac.th\httpdocs\calendar\index.php(66): require_once('D:\\Inetpub\\vhos...')
#2 {main}
thrown in D:\Inetpub\vhosts\aed.op.kmutnb.ac.th\httpdocs\calendar\includes\calendar.php on line 33