Hi @jenny lim
Thanks for visiting our forum. Please kindly note that here on Microsoft Q&A forum we mainly focus on questions about Teams for Business. If only the personal account facing this issue, please consider posting in the corresponding Microsoft Community for better help. Thanks for your understanding.
Please try logging in to the Teams web client in incognito mode to check if you can log in to Teams normally.
Personal Account: https://teams.live.com
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.