Sorry to hear you’re still having troubles accessing your store via Chrome and Safari. Thanks for trying all of the suggested troubleshooting steps and for your patience thus far.
If you’ve ensured that all browsers are up to date, and have followed the instructions to clear your DNS cache, please make sure your operating system is up to date. There is more information on these third party sites about updating Windows, and updating MacOS. Once you have done this, please trying clearing your DNS cache once more.
After this, if you are still receiving the same error, the best thing you can do is reach out directly to our Support team. We’re not able to provide account-specific support via the Shopify Community at this time, however our Support team can look into this issue further with you via live chat, callback or email. If needed, our team can reach out to our Technical Merchant Support team for further assistance. To contact our Support team, follow the link to our Contact page, login to your store, search the issue you’re having troubles with, and look for the option to Continue to get support.
Let me know if you have any further questions!