Hi @Andrey Sim
Creating online meetings with a personal account is not supported, switch to a work/school account or add your personal account as a guest to the tenant.
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.