Error saving Article after update to VERSION 2.18.5

Just upgraded to version 2.18.15.
I now get error message "An error has occurred. 0 Call to a member function format() on bool" when saving a Page Builder Article/
See screen shot

Hi
please enable the debug mode in your website config and give me the message
CEd

Hi Cedric,
I backed to old version and problem disappearedd.
I will have to re-install. Give me an hour or so
David

Hi Cedric,
I think the problem was on our side. When we installed the Page Builder update, We also installed a new version of Max Menu and then made one other small change to Language Overrides. We have another component which displays dates in the default Joomla Format yyyy-mm-dd, we tried doing some overrides to change the format to dd-mm-yyyy..
Then we had the problem.
I then backed out all the changes and just re-installed the new version of PageBuilder with Debug on.
This time NO ERROR when I edited and saved the article. So the problem is NOT Page Builder.
Apologies for reporting a false issue.
Kind regards
David

great