Hi , I opened up Em client email today and noticed my calendar has gone, is there a way to get it back ?

Hello Niall,

Can you please specify what kind of e-mail account are you using?

-Dave

Hi Dave,

Its eM Client version 6.0.24928.0  and i have my worked email address setup on it.

Still no answer to my problem ??

Hello Niall,
sorry for the delay, can you please specify how your account is set up? Is it an IMAP/Exchange/POP account? What service does your calendar use - is it CalDAV? You can check these settings in Tools>Accounts section.
Is your calendar still accessible on your server?

Regards,
Olivia