the code that you decoded is wrong, there's a misplaced space so of course it will give you a different file hence the password doesn't work. here is the corrected code:
Code:
aHR0cHM6Ly9raW9za2xvdWQuaW8vZS82NWNmYWMyZTc1YTllODM1ZDcyNDY0YzF+NFVDRVNNTVQ5QjY2RTY0RExRUk42UklXV0xZT0c3VE9HWkRCSFlSSUVVN1ZYNUlDS1pZR1NDVE4yRkVXN05W UUhYR1NIQ01QWEs0M1I2QjRKU1FEQUZMUzVWUTZRU0VIMlUzT1ZKSkFXUQ==
if you don't believe me then check for yourself, open notepad, paste your own code and enlarge it so that you can see the code in one line, go
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to get the correct code and look at it character by character and you'll see the difference.
Edit: the code you put in is not in arca and is completely unrelated to summer or winter memories, I searched for it and found nothing.