Since updating to Joomla 4/latest Helix Ultimate (not sure which of the updates triggered it), I get an error when scheduling articles (using Start Publication) via frontend.
The error I get is:
Call to a member function format() on bool
As a result, I can't schedule articles.
There is not problem adding articles through frontend when publishing immediately. The error is triggered by adding a future publication date.
Any ideas on how to fix it? Thanks in advance!
