Bug-Report: DJ-Media Tools 2.17.2/2.17.4 is not working well with JM-Hot-News under PHP 7.4.26

Bug-Report: DJ-Media Tools 2.17.2/2.17.4 is not working well with JM-Hot-News under PHP 7.4.26

Hi,
(update available - see below)

under PHP 7.4.26 i installed the current version of quickstart of JM-Hot-News which is on Joomla 3.8.0. After i got some error messages about magic_quotes which are from Joomla 3.8.0, i upgraded slowley first to 3.8.13, than 3.9.0, than 3.9.27 and than to the current 3.10.10. Then i reinstalled EF4 Framework (to 4.9.6) and updated DJ MediaTools from 2.10.0 to 2.17.4, DJ Tabs from 1.3.4 to 2.1/2.2 and DJ-Megamenu from 3.5.4 to 4.3.6. On this way i fixed a lot of errors and problems. But now i have a problem with the example data out from the quickstart and DJ-MediaTools, which is the following:

( ! ) Notice: Undefined variable: title_style in C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\slideshow_description.php on line 46 Call Stack #TimeMemoryFunctionLocation 10.0011363072{main}( )...\index.php:0 20.23331088848Joomla\CMS\Application\CMSApplication->execute( )...\index.php:49 30.90502969792Joomla\CMS\Application\SiteApplication->render( )...\CMSApplication.php:231 40.90552969784Joomla\CMS\Application\CMSApplication->render( )...\SiteApplication.php:778 53.39624413784Joomla\CMS\Document\HtmlDocument->render( $caching = FALSE, $params = ['template' => 'jm-hot-news-ef4', 'file' => 'index.php', 'params' => class Joomla\Registry\Registry { protected $data = class stdClass { ... }; protected $initialized = TRUE; public $separator = '.' }, 'directory' => 'C:\\wamp64\\www\\gbe\\templates'] )...\CMSApplication.php:1112 63.39624413784Joomla\CMS\Document\HtmlDocument->_renderTemplate( )...\HtmlDocument.php:577 73.49364442720Joomla\CMS\Document\HtmlDocument->getBuffer( $type = 'modules', $name = 'header', $attribs = ['name' => 'header', 'style' => 'jmmodule'] )...\HtmlDocument.php:803 83.49364442800Joomla\CMS\Document\Renderer\Html\ModulesRenderer->render( $position = 'header', $params = ['name' => 'header', 'style' => 'jmmodule'], $content = NULL )...\HtmlDocument.php:511 93.49384443256Joomla\CMS\Document\Renderer\Html\ModuleRenderer->render( $module = class stdClass { public $id = '300'; public $title = 'Header Tabber'; public $module = 'mod_djmediatools'; public $position = 'header'; public $content = ''; public $showtitle = '0'; public $params = '{"catid":"5","layout":"_:tabber","slider_type":"","desc_effect":"","sort_by":"","link_image":"","lightbox":"","image_width":"653","image_height":"320","resizing":"toHeight","quality":"","thumb_width":"49","thumb_height":"49","visible_images":"","space_between_images":"","max_images":"","show_thumbs":"","tab_indicator":"","tab_width":"240","tab_height":"79","tab_position":"","show_title":"","show_desc":"0","show_readmore":"0","readmore_text":"","link_title":"","link_desc":"","limit_desc":"","autoplay":"","pa'; public $menuid = '470'; public $name = 'djmediatools'; public $style = NULL }, $attribs = ['name' => 'header', 'style' => 'jmmodule'], $content = NULL )...\ModulesRenderer.php:47 103.49394449016Joomla\CMS\Helper\ModuleHelper::renderModule( $module = class stdClass { public $id = '300'; public $title = 'Header Tabber'; public $module = 'mod_djmediatools'; public $position = 'header'; public $content = ''; public $showtitle = '0'; public $params = '{"catid":"5","layout":"_:tabber","slider_type":"","desc_effect":"","sort_by":"","link_image":"","lightbox":"","image_width":"653","image_height":"320","resizing":"toHeight","quality":"","thumb_width":"49","thumb_height":"49","visible_images":"","space_between_images":"","max_images":"","show_thumbs":"","tab_indicator":"","tab_width":"240","tab_height":"79","tab_position":"","show_title":"","show_desc":"0","show_readmore":"0","readmore_text":"","link_title":"","link_desc":"","limit_desc":"","autoplay":"","pa'; public $menuid = '470'; public $name = 'djmediatools'; public $style = NULL }, $attribs = ['name' => 'header', 'style' => 'jmmodule'] )...\ModuleRenderer.php:98 113.49534472472include( 'C:\wamp64\www\gbe\modules\mod_djmediatools\mod_djmediatools.php )...\ModuleHelper.php:200 123.64754544104require( 'C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\tabber.php )...\mod_djmediatools.php:85 134.09074595536require( 'C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\slideshow_description.php )...\tabber.php:59 " href="/gbe/index.php/sport/football/89-broncos-and-chiefs-flying-high-in-nfl" target="_self"> Broncos and Chiefs flying high in NFL


( ! ) Notice: Undefined variable: title_style in C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\slideshow_description.php on line 46 Call Stack #TimeMemoryFunctionLocation 10.0011363072{main}( )...\index.php:0 20.23331088848Joomla\CMS\Application\CMSApplication->execute( )...\index.php:49 30.90502969792Joomla\CMS\Application\SiteApplication->render( )...\CMSApplication.php:231 40.90552969784Joomla\CMS\Application\CMSApplication->render( )...\SiteApplication.php:778 50.90552970160Joomla\CMS\Document\HtmlDocument->parse( $params = ['template' => 'jm-hot-news-ef4', 'file' => 'index.php', 'params' => class Joomla\Registry\Registry { protected $data = class stdClass { ... }; protected $initialized = TRUE; public $separator = '.' }, 'directory' => 'C:\\wamp64\\www\\gbe\\templates'] )...\CMSApplication.php:1098 60.90552970160Joomla\CMS\Document\HtmlDocument->_fetchTemplate( $params = ['template' => 'jm-hot-news-ef4', 'file' => 'index.php', 'params' => class Joomla\Registry\Registry { protected $data = class stdClass { ... }; protected $initialized = TRUE; public $separator = '.' }, 'directory' => 'C:\\wamp64\\www\\gbe\\templates'] )...\HtmlDocument.php:555 70.90602970240Joomla\CMS\Document\HtmlDocument->_loadTemplate( $directory = 'C:\\wamp64\\www\\gbe\\templates/jm-hot-news-ef4', $filename = 'index.php' )...\HtmlDocument.php:740 80.90632987136require( 'C:\wamp64\www\gbe\templates\jm-hot-news-ef4\index.php )...\HtmlDocument.php:678 90.96903093528JMFTemplate->renderScheme( $scheme_name = 'default' )...\index.php:19 100.96903093528JMFTemplate->renderBlock( $block_name = 'default', $is_scheme = TRUE )...\template.php:688 110.96953094280include( 'C:\wamp64\www\gbe\templates\jm-hot-news-ef4\tpl\default.php )...\template.php:674 121.00393103336JMFTemplate->renderBlock( $block_name = 'main', $is_scheme = ??? )...\default.php:64 131.00433104160include( 'C:\wamp64\www\gbe\templates\jm-hot-news-ef4\tpl\blocks\main.php )...\template.php:674 141.00463104288JMFTemplate->renderModules( $position = 'content-top', $chrome = 'jmmodule', $grid_layout = ??? )...\main.php:30 151.33023283088Joomla\CMS\Document\Renderer\Html\ModuleRenderer->render( $module = class stdClass { public $id = '327'; public $title = 'Most Popular Articles'; public $module = 'mod_djmediatools'; public $position = 'content-top'; public $content = ''; public $showtitle = '1'; public $params = '{"catid":"7","layout":"_:mslider","slider_type":"","desc_effect":"","sort_by":"1","link_image":"","lightbox":"","image_width":"240","image_height":"360","resizing":"toWidth","quality":"","thumb_width":"","thumb_height":"","visible_images":"3","space_between_images":"15","max_images":"9","skip":"","show_thumbs":"","tab_indicator":"","tab_width":"","tab_height":"","tab_position":"","show_title":"","show_desc":"","show_readmore":"","readmore_text":"","link_title":"","link_desc":"","limit_desc":"90","autoplay":'; public $menuid = '470'; public $name = 'djmediatools'; public $style = NULL; public $_bs_size = 0 }, $attribs = ['style' => 'jmmodule'], $content = NULL )...\template.php:754 161.33033288928Joomla\CMS\Helper\ModuleHelper::renderModule( $module = class stdClass { public $id = '327'; public $title = 'Most Popular Articles'; public $module = 'mod_djmediatools'; public $position = 'content-top'; public $content = ''; public $showtitle = '1'; public $params = '{"catid":"7","layout":"_:mslider","slider_type":"","desc_effect":"","sort_by":"1","link_image":"","lightbox":"","image_width":"240","image_height":"360","resizing":"toWidth","quality":"","thumb_width":"","thumb_height":"","visible_images":"3","space_between_images":"15","max_images":"9","skip":"","show_thumbs":"","tab_indicator":"","tab_width":"","tab_height":"","tab_position":"","show_title":"","show_desc":"","show_readmore":"","readmore_text":"","link_title":"","link_desc":"","limit_desc":"90","autoplay":'; public $menuid = '470'; public $name = 'djmediatools'; public $style = NULL; public $_bs_size = 0 }, $attribs = ['style' => 'jmmodule'] )...\ModuleRenderer.php:98 171.33233315640include( 'C:\wamp64\www\gbe\modules\mod_djmediatools\mod_djmediatools.php )...\ModuleHelper.php:200 181.42793548024require( 'C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\mslider.php )...\mod_djmediatools.php:85 192.09133632128require( 'C:\wamp64\www\gbe\modules\mod_djmediatools\tmpl\slideshow_description.php )...\mslider.php:65 " href="/gbe/index.php/business/worldwide/94-eurozone-retail-sales-fall-in-march" target="_self"> Eurozone retail sales fall in March

Is there any solution?
Thank you.