Hi @Aung Min Soe
Considering your question contains the personal information, I edit your pictures and covered them. Thanks for your understanding!
To troubelshooting about this issue, I have some questions to confirm with you:
1)Do you mean the hybrid users' outlook email address is not sync to Teams application, right?
2)Do you have any operations before this issue occurred?
First follow link below to make the option available on the teams app:
https://docs.microsoft.com/en-us/microsoftteams/public-preview-doc-updates
Wait a bit for the policy to propagate to the clients then turn the setting on in the app to see if it could be sync.
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