I'm sorry abut the issue. Please try the following fix:
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That should work, but if it does not work, please disconnect Wi-Fi/wireless from the computer, or disconnect the Ethernet/network cable from the computer (or disconnect the power cord from the Internet modem/router device), then try steps 1, 2, and 3 above again, then re-connect Internet, then close / re-open Safari application and check.
When you are available, please reply at the box below to continue troubleshooting. Thank you.