If you copy the URL from your Media Resource configuration in SharpTools, then open a new browser window in Incognito/Private mode and paste the URL in there, does the camera stream open directly?
If it prompts you for the username and password, that means something about the username/password configuration isn’t quite right. Or if it doesn’t load at all, something more fundamental is wrong.
The following post also has some helpful tips and screenshots in it:
It might also help to see some screenshots of your TinyCam configuration (like those shown in the linked post). One thing I noticed is that your URL is showing the port as 8443 whereas the standard port in TinyCam is 8083.