Fatal Error – Shortcode Oxilab Plugin

While Oxilab Shortcode Plugin in use, the site crashes several times with Error message as follows:

Fatal error: Uncaught Error: Class '\SHORTCODE_ADDONS_UPLOAD\Info_image_boxes\Templates\Style_1' not found in /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-content/plugins/shortcode-addons/Layouts/Shortcode.php:48 Stack trace: #0 /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-content/plugins/shortcode-addons/Helper/Helper.php(420): SHORTCODE_ADDONS\Layouts\Shortcode->oxi_addons(15) #1 /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-includes/shortcodes.php(356): SHORTCODE_ADDONS\Core\Bootstrap->oxi_addons_shortcode(Array, '', 'oxi_addons') #2 [internal function]: do_shortcode_tag(Array) #3 /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-includes/shortcodes.php(228): preg_replace_callback('/\\[(\\[?)(oxi_ad...', 'do_shortcode_ta...', '<p>[oxi_addons ...') #4 /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-content/plugins/vc-tabs/Render/Old_Render.php(109): do_shortcode('<p>[oxi_addons ...', false) #5 /homepages/17/d314917125/ht in /homepages/17/d314917125/htdocs/clickandbuilds/SubCtech_WP_2020/wp-content/plugins/shortcode-addons/Layouts/Shortcode.php on line 48
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