[Error] 
Call to undefined function mb_orig_strpos() (0)
/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:320
#0: CSecurityXSSDetect::fastStrpos(string, string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:190
#1: CSecurityXSSDetect->findInArray(string, array)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:221
#2: CSecurityXSSDetect->isDangerBody(string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:237
#3: CSecurityXSSDetect->getFilteredScriptBody(string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:262
#4: CSecurityXSSDetect->getFilteredScript(array)
	
#5: preg_replace_callback(string, array, string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:274
#6: CSecurityXSSDetect->filter(string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:72
#7: CSecurityXSSDetect->process(string)
	/var/www/html/inkfti/bitrix/modules/security/classes/general/post_filter.php:55
#8: CSecurityXSSDetect::OnEndBufferContent(string)
	/var/www/html/inkfti/bitrix/modules/main/classes/general/module.php:490
#9: ExecuteModuleEventEx(array, array)
	/var/www/html/inkfti/bitrix/modules/main/classes/general/main.php:3254
#10: CAllMain->EndBufferContent(string)
	/var/www/html/inkfti/bitrix/modules/main/classes/general/main.php:3201
#11: CAllMain->EndBufferContentMan()
	/var/www/html/inkfti/bitrix/modules/main/include/epilog_after.php:36
#12: require(string)
	/var/www/html/inkfti/bitrix/modules/main/include/epilog.php:3
#13: include(string)
	/var/www/html/inkfti/bitrix/modules/main/classes/general/main.php:310
#14: CAllMain->AuthForm(boolean)
	/var/www/html/inkfti/bitrix/modules/main/include.php:620
#15: require_once(string)
	/var/www/html/inkfti/bitrix/modules/main/include/prolog_before.php:14
#16: require_once(string)
	/var/www/html/inkfti/bitrix/modules/main/include/prolog.php:10
#17: require_once(string)
	/var/www/html/inkfti/bitrix/header.php:1
#18: require(string)
	/var/www/html/inkfti/auth/index.php:3