Hi sisamarie,
We would love to see if we can help resolve the issue you're having. Let's start by doing some basic steps that resolve the most common issues for Safari. If Safari isn't working as you expect, one of the below solutions might help.
"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.
- Choose Safari > Settings (or Preferences), then click Privacy.
- Click Manage Website Data.
- Select the affected website from the list shown.
- Click Remove.
- Click Done.
- Open the website again in a non-private browser window.
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.
Check network settings
Certain network settings, such as those related to using a proxy server or custom DNS server, can affect access to content on the internet. Even if you haven't changed your network settings, you might have installed software that changed those settings for you.
- To find out whether the issue is with the network settings on your Mac, try viewing the website from some other device connected to the same network.
- To find out whether the issue is with your network itself, try viewing the website after connecting to a different network."
Reference: If Safari on Mac doesn't open a webpage or isn’t working as expected
Cheers!