Thank you I though it was their side. I have posted to their forum also.

Sure

I have been made aware of this issue and I have located the cause of the PHP error. A beta with the fix will be released this coming week.

However, a further complication has arisen, perhaps due to the inclusion of Tinymce 5 in Joomla 4. SP PageBuilder appears to load both Tinymce and JCE on the same page. This causes a conflict between the 2 versions of Tinymce (the core version and the one used by JCE) that causes errors when editing SP Page Builder content with JCE.

The only solution I can see is to not load the core Tinymce editor if JCE is the selected Joomla editor. This can be done by editing administrator/components/com_sppagebuilder/helpers/sppagebuilder.php and adding a condition for loading the editor, eg:

$editor  = $conf->get('editor');

        if ($editor == 'tinymce') {
            if(JVERSION < 4)
            {
                $doc->addScript(Uri::root(true) . '/media/editors/tinymce/tinymce.min.js');
                $doc->addScriptdeclaration('var tinyTheme="modern";');
            }
            else
            {
                $wa = $doc->getWebAssetManager();

                if (!$wa->assetExists('script', 'tinymce'))
                {
                    $wa->registerScript('tinymce', 'media/vendor/tinymce/tinymce.min.js', [], ['defer' => true]);
                }

                if (!$wa->assetExists('script', 'plg_editors_tinymce'))
                {
                    $wa->registerScript('plg_editors_tinymce', 'plg_editors_tinymce/tinymce.min.js', [], ['defer' => true], ['core', 'tinymce']);
                }

                $wa->useScript('tinymce')
                    ->useScript('plg_editors_tinymce');

                $doc->addScriptdeclaration('var tinyTheme="silver";');
                $doc->addStyledeclaration('.tox-tinymce-aux {z-index: 130012 !important;}');
            }
        }

        // JCE Editor
        if ($editor == 'jce') {
            require_once(JPATH_ADMINISTRATOR . '/components/com_jce/includes/base.php');
            wfimport('admin.models.editor');
            $editor = new WFModelEditor();

            $settings = $editor->getEditorSettings();

            $app->triggerEvent('onBeforeWfEditorRender', array(&$settings));
            echo $editor->render($settings);
        }

Please pass this on to the SP PageBuilder developers. They can contact me using the email address in my profile. I have made as many changes as I can to address this problem in JCE, but cannot see another solution without the code change above.

Thank you

Ryan Demmer JCE Developer

Thanks for your explanation. I will share the forum posts with our developer team. Thanks