safari / macmini cannot connect to server

Have you restarted the computer? Tried logging out of your user account and back in?

Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.

Isolating an issue by using another user account 

Safe Mode - About

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply.        Pastebin

Etrecheck – System Information

Run/post the Etrecheck report while booted into your normal account. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply.        Pastebin

Are you running any anti-virus programs? Little Snitch?

Have you tried restarting/resetting the router?

See if it works in another admin account and the Safe Mode.

Try quitting/uninstalling TunnelBear and Windscribe. Reboot and test.

You removed 2 apps, so you don't know whether they were both a problem or only one was. You can try reinstalling the app and see if the computer works normally. If it doesn't, uninstall it again.

Have you checked for an updated version of Windscribe?