Hotmail account Disappeared

I have a gmail account and a hotmail account in my em client. I can see both accounts in Tools>Accounts and all settings appear to be proper. About 2 hours ago, the hotmail account disappeared from the mail tab. I cannot find anywhere to read the emails in the hotmail account. gmail account is working fine.

email me directly at [email protected] - I will send you our internal version containing fix for this issue.