Hello I updated joomla 5 on the INDIGO template and got some errors:

• with debugging of joomla: "Deprecated: strtotime(): Passing null to parameter #1 ($datetime) of type string is deprecated in C:\mysite\html\templates\indigo\html\com_content\article\default.php on line 77"

• disabling the plugin "behaviour":

1. ON Backend: Class "JPlugin" not found

Call Stack

Function Location

1 () JROOT\plugins\system\sppagebuilder\sppagebuilder.php:22 2 require_once() JROOT\libraries\src\Extension\ExtensionManagerTrait.php:217 3 Joomla\CMS\Application\CMSApplication->loadPluginFromFilesystem() JROOT\libraries\src\Extension\ExtensionManagerTrait.php:160 4 Joomla\CMS\Application\CMSApplication->loadExtension() JROOT\libraries\src\Extension\ExtensionManagerTrait.php:99 5 Joomla\CMS\Application\CMSApplication->bootPlugin() JROOT\libraries\src\Plugin\PluginHelper.php:232 6 Joomla\CMS\Plugin\PluginHelper::import() JROOT\libraries\src\Plugin\PluginHelper.php:192 7 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT\libraries\src\Application\CMSApplication.php:765 8 Joomla\CMS\Application\CMSApplication->initialiseApp() JROOT\libraries\src\Application\AdministratorApplication.php:321 9 Joomla\CMS\Application\AdministratorApplication->initialiseApp() JROOT\libraries\src\Application\AdministratorApplication.php:174 10 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT\libraries\src\Application\CMSApplication.php:306 11 Joomla\CMS\Application\CMSApplication->execute() JROOT\administrator\includes\app.php:58 12 require_once() JROOT\administrator\index.php:32

2. on frontend: Symfony\Component\ErrorHandler\Error\ClassNotFoundError: Attempted to load class "JFactory" from the global namespace. Did you forget a "use" statement?

at C:\WWW\vhost\villafiorita\html\templates\indigo\error.php:17 at require() (C:\WWW\vhost\villafiorita\html\libraries\src\Document\HtmlDocument.php:731) at Joomla\CMS\Document\HtmlDocument->_loadTemplate('C:\WWW\vhost\villafiorita\html\templates/indigo', 'error.php') (C:\WWW\vhost\villafiorita\html\libraries\src\Document\HtmlDocument.php:785) at Joomla\CMS\Document\HtmlDocument->_fetchTemplate(array('template' => 'indigo', 'directory' => 'C:\WWW\vhost\villafiorita\html\templates', 'debug' => true, 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) (C:\WWW\vhost\villafiorita\html\libraries\src\Document\HtmlDocument.php:622) at Joomla\CMS\Document\HtmlDocument->parse(array('template' => 'indigo', 'directory' => 'C:\WWW\vhost\villafiorita\html\templates', 'debug' => true, 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) (C:\WWW\vhost\villafiorita\html\libraries\src\Document\HtmlDocument.php:640) at Joomla\CMS\Document\HtmlDocument->render(false, array('template' => 'indigo', 'directory' => 'C:\WWW\vhost\villafiorita\html\templates', 'debug' => true, 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) (C:\WWW\vhost\villafiorita\html\libraries\src\Document\ErrorDocument.php:139) at Joomla\CMS\Document\ErrorDocument->render(false, array('template' => 'indigo', 'directory' => 'C:\WWW\vhost\villafiorita\html\templates', 'debug' => true, 'csp_nonce' => null, 'templateInherits' => '', 'params' => object(Registry), 'file' => 'error.php')) (C:\WWW\vhost\villafiorita\html\libraries\src\Error\Renderer\HtmlRenderer.php:78) at Joomla\CMS\Error\Renderer\HtmlRenderer->render(object(Error)) (C:\WWW\vhost\villafiorita\html\libraries\src\Exception\ExceptionHandler.php:136) at Joomla\CMS\Exception\ExceptionHandler::render(object(Error)) (C:\WWW\vhost\villafiorita\html\libraries\src\Exception\ExceptionHandler.php:73) at Joomla\CMS\Exception\ExceptionHandler::handleException(object(Error)) (C:\WWW\vhost\villafiorita\html\libraries\src\Application\CMSApplication.php:336) at Joomla\CMS\Application\CMSApplication->execute() (C:\WWW\vhost\villafiorita\html\includes\app.php:58) at require_once('C:\WWW\vhost\villafiorita\html\includes\app.php') (C:\WWW\vhost\villafiorita\html\index.php:32)

"joomla 5.0.3 - php 8.1.26" ... Indigo should work with joomla5, right?

suggestions? Thank you very much