It seems that your computer or browser is infected by browser hijacker or PUP that is causing this problem. You can search whether there is the informationvine in your control panel or an informationvine extension on your web browser. If any, you should first uninstall it from your machine.
Also, I would advise you to reset browser settings and scan your computer for malware. Use below links to know how to reset your browser you are using:
Reset Internet Explorer http://www.myantispyware.com/2016/03/07/how-to-reset-internet-explorer-settings-to-default/
Reset Google Chrome http://www.myantispyware.com/2016/01/06/how-to-reset-google-chrome-settings-to-default/
Reset Mozilla Firefox http://www.myantispyware.com/2016/02/07/how-to-reset-mozilla-firefox-settings-to-default/
To scan your computer for malware use free tools listed below:
Free Malware Removal Tools – http://www.myantispyware.com/2018/04/23/best-free-malware-removal-tools/