Error(s) im MediaBox after upgrade to Joomla 4 and PHP8

Hi CEd,

I'm currently upgarding another site to J4 and PHP8 where I upgraded MediaBox to the latest level 2.6.5
On the old level (J3.10, PHP7, Mediabox 2.3.2) eveything was working fine with MediaBox..
I'm using Mediabox to
- display single images via links from the article text
- embed galleries and show the images
- display single images via links from SlideshowCk
After the upgrade on many pages I get this one or multiple of these warning messages:
Warning: Undefined array key 1 in C:\xampp\htdocs\joomla_01\plugins\system\mediabox_ck\pro\mediaboxck_pro.php on line 220
And then Mediabox is not working correctly: the images are not correctly resized nor shown in the center of the screen.

Any idea what went wrong ?

Thank you for your support,
Volker

Hi
thank you for reporting this
please give me the tag or html code that you use in your article where you have the problem. it seems related to the folder path using the attribute "data-dir" on the link to load the images from a folder
CEd

Hello CEd,
thank you for your quick reply.
Find the html code of one of the pages as file attachment.
This page shows this warning message 4 times.
Best Regards,
Volker

check the links in the page : the problem is here, you have the rel="lightbox" and the "data-dir" attribute but it is empty. You must remove this attribute as you don't want to load a folder here

Hello CEd,
many thanks.
Yes, removing the data-dir attribute solves the issue.
Note: I did not manually create/edit the html code- it has been created by using the MediaBox Button plugin in the article editor.
Best Regards,
Volker