Sending, receiving, and organizing email in Outlook.com
Hello, try to sign in at outlook.live.com select the Settings gear, go to General, then Language and time, choose English, and save. Since your emails were deleted, check Deleted Items and select Recover items deleted from this folder.
You can restore messages within about 30 days if they were not permanently removed. If nothing shows there, recovery is no longer possible. Also go to account.microsoft.com/security review recent activity, change your password, and turn on two step verification to secure your account.