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