I’m Miles from the Social Care team at Shopify. I am sorry to hear you’re not able to log into your Shopify Admin. I’ve just checked, and we don’t have any reported issues with the admin at the moment and it looks like my login is working for my store.
If you are experiencing issues, I’d recommend trying the following:
If you do try the above and it’s not logging in, there may be an issue with your account and you’ll need to contact Shopify Support for assistance. I’d also recommend keeping an eye on shopifystatus.com if you’re ever having issues to see if it’s a widespread issue or not.
If you need any further assistance, please let me know.