I have just purchased the Horizontal Accordion Gallery extension and installed on a JoomlaWarning: Undefined array key 5.4.0. After basic configuration I get a bunch of "Warning: Undefined array key in......" messages.
It was shown on the product info site that this extension is compatible with Joomla 5 - so please help me to fix this.
thank
dio
UPDATE: I have solved the issue by modifying helper.php (made it php 8 compatible). But is might be useful for others, too
Last edit: 1 month 2 weeks ago by Zoltan Dioszeghy. Reason: Problem solved.
Undefined array key
