[TypeError] 
call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "openGraph" not found or invalid function name (0)
/home/c/ci08197/public_html/bitrix/modules/main/classes/general/main.php:3389
#0: CAllMain->EndBufferContent(string, integer)
	
#1: ob_end_clean()
	/home/c/ci08197/public_html/bitrix/modules/main/lib/httpresponse.php:32
#2: Bitrix\Main\HttpResponse->flush(NULL)
	/home/c/ci08197/public_html/bitrix/modules/main/lib/response.php:91
#3: Bitrix\Main\Response->send()
	/home/c/ci08197/public_html/bitrix/modules/main/lib/engine/response/redirect.php:155
#4: Bitrix\Main\Engine\Response\Redirect->send()
	/home/c/ci08197/public_html/bitrix/modules/main/lib/application.php:327
#5: Bitrix\Main\Application->end(integer, object)
	/home/c/ci08197/public_html/bitrix/modules/main/tools.php:3527
#6: LocalRedirect(string)
	/home/c/ci08197/public_html/deyatelnost/meropriyatiya/index.php:4
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