Fatal error: Uncaught Error: Interface 'JsonSerializable' not found in /home/inter66/shared/bitrix/modules/main/lib/error.php:11
Stack trace:
#0 /home/inter66/shared/bitrix/modules/main/lib/loader.php(430): require_once()
#1 [internal function]: Bitrix\Main\Loader::autoLoad('Bitrix\\Main\\Err...')
#2 /home/inter66/shared/bitrix/modules/main/lib/orm/entityerror.php(11): spl_autoload_call('Bitrix\\Main\\Err...')
#3 /home/inter66/shared/bitrix/modules/main/lib/loader.php(430): require_once('/home/inter66/s...')
#4 [internal function]: Bitrix\Main\Loader::autoLoad('Bitrix\\Main\\ORM...')
#5 /home/inter66/shared/bitrix/modules/main/lib/orm/fields/fielderror.php(13): spl_autoload_call('Bitrix\\Main\\ORM...')
#6 /home/inter66/shared/bitrix/modules/main/lib/loader.php(430): require_once('/home/inter66/s...')
#7 [internal function]: Bitrix\Main\Loader::autoLoad('Bitrix\\Main\\ORM...')
#8 [internal function]: spl_autoload_call('Bitrix\\Main\\ORM...')
#9 /home/inter66/shared/bitrix/modules/main/include/compatibility.php(25): class_a in /home/inter66/shared/bitrix/modules/main/lib/error.php on line 11