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[ArgumentCountError] 
Too few arguments to function CAllFile::SaveFile(), 1 passed in /home/c/cy56881/public_html/a.php on line 16 and at least 2 expected (0)
/home/c/cy56881/public_html/bitrix/modules/main/classes/general/file.php:135
#0: CAllFile::SaveFile(NULL)
	/home/c/cy56881/public_html/a.php:16
#1: MainHandlers::OnBeforeEventAddHandler(string, string, array, string, array, string)
	/home/c/cy56881/public_html/bitrix/modules/main/classes/general/module.php:475
#2: ExecuteModuleEventEx(array, array)
	/home/c/cy56881/public_html/bitrix/modules/main/classes/general/event.php:63
#3: CAllEvent::Send(string, string, array, string)
	/home/c/cy56881/public_html/a.php:37