I am redirected to the following error message after logging in to Business Central

The text reads:
Something went wrong.
Could not open the '' company. Access is denied to company 'CRONUS US'.
Date and time: Sun, 22 Nov 2020 19:38:48 GMT
Operation: 4a6a7e48-dbe4-483c-b40d-0abe5aeae393
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This occurs no matter how I attempt to login. I have tried to log in from Office.com > Dynamics 365 (home.dynamics.com) > Business Central (businesscentral.dynamics.com/b7a34e1d-e025-4367-be7d-8edcd8f38e2c/)
I have cleared my cache/history completely on both Edge and Chrome without success. I have also used a different computer without success.
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When I log in on a desktop computer, I am able to see the correct screen for less than a second before being redirected to the same error message. I am new to the company that gave me the account and I was able to successfully log in to Business Central during the first week. Since that week I have been redirected to this screen every single time.
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The Admin for my account has checked my permissions and said it looked correct.
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If there is any advice or help you can offer that would be greatly appreciated
Thanks,
Logan