Hi, I have been trying to create a Child theme out of the Javelin theme.
And this is the error that I get:
<h4>Do Not Activate “Agency Mobile -JevelinChild2”! A PHP FATAL ERROR has been detected.</h4>
Notice: Undefined index: enable-wp-app-bar in /home4/u1521sfl/public_html/advancedsearch.online/wp-content/plugins/wp-app-bar/includes/class-app-bar-actions.php on line 103
Fatal error: Cannot redeclare jevelin_render_google_analytics_js() (previously declared in /home4/u1521sfl/public_html/advancedsearch.online/wp-content/themes/jevelin/inc/static.php:101) in /home4/u1521sfl/public_html/advancedsearch.online/wp-content/themes/jevelin/inc/static.php on line 117
Sorry to hear of the problem you are having.
This can be due to plugin conflict on your site so please try temporary deactivating all plugins except Unyson plugin and WpBakery page builder plugins and see whether everything works fine and then enable the plugins one by one to see which plugin is conflicting if any or use following plugin to check it.