Fatal error: Uncaught Error: Call to undefined function json_decode() in /home2/egpp/gestiondeconflictos3/lib/classes/useragent.php:123 Stack trace: #0 /home2/egpp/gestiondeconflictos3/lib/classes/useragent.php(110): core_useragent->__construct(NULL) #1 /home2/egpp/gestiondeconflictos3/lib/classes/useragent.php(154): core_useragent::instance() #2 /home2/egpp/gestiondeconflictos3/lib/classes/useragent.php(265): core_useragent::get_device_type() #3 /home2/egpp/gestiondeconflictos3/lib/pagelib.php(664): core_useragent::get_user_device_type() #4 /home2/egpp/gestiondeconflictos3/lib/pagelib.php(768): moodle_page->magic_get_devicetypeinuse() #5 /home2/egpp/gestiondeconflictos3/lib/pagelib.php(1603): moodle_page->__get('devicetypeinuse') #6 /home2/egpp/gestiondeconflictos3/lib/pagelib.php(1510): moodle_page->resolve_theme() #7 /home2/egpp/gestiondeconflictos3/lib/setuplib.php(1797): moodle_page->initialise_theme_and_output() #8 /home2/egpp/gestiondeconflictos3/lib/setuplib.php(362): bootstrap_renderer->__call('fatal_error', Arra in /home2/egpp/gestiondeconflictos3/lib/classes/useragent.php on line 123