Thank you for providing the detailed information. Based on your report, the root cause of the upload issue (error 500 in SP Page Builder and Media Manager) is that the PHP GD extension is not enabled on your server. The imagecreatefrompng() function, which is required for handling images, is part of the GD library. Without it, Joomla and SP Page Builder cannot process image uploads properly.
Since GD is a PHP extension, enabling it requires access to the server’s PHP configuration. We recommend contacting your hosting provider and requesting that they enable the GD extension for PHP 8.3. Once GD is enabled, the upload functionality should work as expected.
Additionally, please ensure that the upload_tmp_dir is correctly set in your PHP configuration. This is also essential for file uploads.
We apologize for the inconvenience and appreciate your understanding.
Best regards