Hi Jasmin,
Regarding “Error code:0x80048823”, based on my experience, normally, it may be caused by the incorrect license and the expired password in the organization, so could you check whether your account has been assigned the correct license? And also could you try to reset your password and sign in again to check the issue?
If you have encountered problem during the process, please contact your school IT administrator directly to help you.
If there is anything we can help, please feel free to let us know.
Regards,
Charles