The specified date is invalid是什么意思

the serial number is invalid是什么意思 the activationkey you entered is invalid是什么意思 the serial you entered is invalid是什么意思? mnu is invalid是什么意思 crashender.exe+is+not+found+in+the+specified+path+++是什么意思 the cd key you have entered is invalid 是什么意思? The number that you have entered is invalid是什么意思 Invalid hostname specified什么意思? email+domain+is+invalid是什么意思 Pay Password is invalid! 是什么意思 What is the date中文是什么意思 The specified datacenter is not found