@Akash Vyas
UPDATE!
I manage to fix it by rename Enpass folder in Document folder and restore the cloud data from dropbox,
Thanks so much for your support,
thanks so much for your reply, i will try you solution later today, but l just wanna let u know that it seem to be only issue on one computer, because another pc that use the same client still able to log in with the same master password.
best regards