Front Page Error

This happens on my front page:

Warning: implode(): Invalid arguments passed in E:\Inetpub\vhosts\ramadaancourse.co.za\httpdocs\plugins\system\jarvis\lib\jarvis\template\Builder.php on line 273
Warning: Invalid argument supplied for foreach() in E:\Inetpub\vhosts\ramadaancourse.co.za\httpdocs\plugins\system\jarvis\lib\jarvis\template\Builder.php on line 219

I've tried overwriting it with the original php. file downloaded but nothing changed.

219:
foreach($layoutConfig as $rowParams) {
$section = new LayoutSection($rowParams);
$layoutSections[] = $section->render();
}

273:
$fontQuery = array();
foreach($googleFonts as $name => $options) {
$fontQuery[] = sprintf('%s:%s', $name, implode(':', $options));
}

The problem maybe due data of jarvis not update.
Could you please access to admin / Extensions / Template manager / choose template and open then click save button