There is a problem with Sogou browser settings. The settings in Sogou browser options, regarding security, and the blacklist may have set the website you want to open as a blacklist, so the website cannot be opened. The solution is to cancel the blacklist.

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Some files in IE are damaged, because Sogou Browser is a browser based on IE. If some files in IE are accidentally deleted or damaged, the web page will definitely not be open. You can use Security Guard to repair IE.

There was a virus on the computer, which damaged the Sogou browser and also damaged the system, making it impossible to open the web page. This requires anti-virus, then uninstalling Sogou Browser and reinstalling it. That should be enough.