Hi Annechien

You should be able to find your error.php in the root of your template folder (../templates/j51_stockholm/error.php)?

Ciaran

Dear Ciaran. That is of course where I searched. But the file is simply not there, see screenshot.
I therefore tried to import the error.php I used in the Joomla 3 version. But that does not work.
The error.php is also not located anywhere else. I searched every folder. It contains a error.css file but that is not the one I should adapt of course.

So that's why I requested you to update: to do the same as was apparently wrong in the Scarlet template as well, see
https://www.joomla51.com/forum/add-custom-404-page-to-scarlet-template

Would that be possible?
Thank you in advance
Best regards
Annechien

Dear Ciaran

I know you are very busy. But do you know when you could add the missing error.php file to the Stockholm Template Joomla 4? Thank you in advance.
Have a nice sunday, Annechien

Hi Annechien

You should find that there is already an error.php in place on your template (../templates/j51_stockholm/error.php)?

Ciaran

Dear Ciaran,
I don't why, but apparently joomla 4 wasn't installed completely.
So after your message, I looked again at the Joomla! 4.x Install Files, which I got through unzipping.
I unzipped in this case the j51_stockholm_j4 file as well and found out that not only the error.php was in it, and misteriously not installed while upgrading to joomla 4 by uploading the zipped the j51_stockholm_j4 file
Also other files were missing, like less and cscc.
Strange, since the upgrade went well.
But I uploaded all the missing files through filezilla, one by one.
The problem of the missing files is therefore now solved.