Hi,
Nothing is awry.
HikaShop 5.0.4 has been released one week ago.
For the first two weeks after a release, we don't activate the update notifications.
That way, if there is a big bug we didn't anticipate, early adopters, or people starting a new website will be able to report it to us and we'll be able to hot fix it.
This way, normal users, who are not well versed in IT, and apply the updates without backup and without testing anything won't get these big issues once we activate the update notifications.
If you wish to update your HikaShop without waiting, you can download the install package of the latest version on our website and install it on yours. It will perform the update automatically.