The patent application prompts that no certificate has been detected.

Try another browser. You can try the IE browser that comes with your computer first. If not, you can try downloading a sogou or qq browser. Sometimes browsers don't support it or are blocked.

It is very likely that IE browser intercepted the plug-in. You should reopen it and submit it. See if there is a prompt to intercept plug-ins above or below IE browser. If yes, you can click Allow.