Hi shea89,
Thanks for reaching out to us in Apple Support Communities. It looks like you posted your question from the article If Safari on Mac doesn't open a webpage or isn't working as expected - Apple Support, which is a great resource to follow when having trouble opening webpages.
Did you try any of the suggestions/steps found in the article? We don't want to ask you to repeat troubleshooting steps you have already tried.
If you haven't any of the steps, or maybe a few, give any of the steps below a try. They are found using the link above.
Test with a private window
A website can store cookies, caches, and other data on your Mac, and issues with that data can affect your use of the website. To prevent the website from using that data, view it in a private window. From the menu bar in Safari, choose File > New Private Window, or press Shift-Command-N.
If that works, use the following steps to remove the website's data, including its caches and cookies. The website can then create new data as needed. If it's a website that you sign in to, make sure that you know your sign-in information before continuing.
1: Choose Safari > Settings (or Preferences), then click Privacy.
2: Click Manage Website Data.
3: Select the affected website from the list shown.
4: Click Remove.
5: Click Done.
6: Open the website again in a non-private browser window.
Install software updates
Install all available Apple software updates, which can include updates for Safari.
Check VPN or other security software
If you installed VPN or other software that monitors or interacts with your network connections, that software could affect your use of the website or the internet. Learn about network issues related to VPN and other software.
Another step to try is opening Safari in safe mode. To open in safe mode, completely quit Safari, then holding down the Shift key, open up Safari.
Reach back out and let us know more about what's happening if you still need help.
Take care!