Solved
How to create a child theme in OpenCart 4?
I want to modify the default theme but don't want to lose changes when updating. How to properly create a child theme in OC4? Does OpenCart 4 support this concept at all?
john_dev
22 October 2025, 20:28
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Solved
Error "Class not found" after updating OpenCart 4
After updating to the latest OC4 version, got an error: ``` Fatal error: Class 'Opencart\System\Engine\Controller' not found ``` Cache cleared, permissions checked. What could it be?
Solved
SEO URLs and canonical in OpenCart 4
Having an issue with duplicate pages in Google index. Same product is accessible via different URLs through categories. How to properly set up canonical URLs in OpenCart 4?
