WebKit encountered an internal error" (WebKitErrorDomai:300). any fixes?

Hello tab2022gva,

It looks like Safari is unable to open a webpage you have visited. Following If Safari on Mac doesn't open a webpage or isn’t working as expected should help get things up and running again.

Be sure to follow each set of steps found under these headings:

1. Reload the page
2. Install software updates
3. Turn off Safari extensions
4. Test with a private window
5. Check network settings

Have a great day!