I got error messages

Hi!
Your plugin seems to be just what I neeed!

I got 3 error messages thou when installing your plugin. Is it somethin I can fix or is it not compatible with my theme?

1.
NOTICE: wp-content/plugins/woo-title-limit/woo-title-limit.php:102 – Undefined index: wtl_checkbox_widgets
require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), include(‘/themes/flatsome/page-blank.php’), get_header, locate_template, load_template, require_once(‘/themes/flatsome/header.php’), wp_head, do_action(‘wp_head’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, wp_enqueue_scripts, do_action(‘wp_enqueue_scripts’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woo_title_limit->wtl_scripts

2.
NOTICE: wp-content/plugins/woo-title-limit/woo-title-limit.php:497 – Undefined index: wtl_checkbox_etc_home
require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), include(‘/themes/flatsome/page-blank.php’), the_content, apply_filters(‘the_content’), WP_Hook->apply_filters, call_user_func_array, flatsome_contentfix, do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, ux_products, wc_get_template_part, load_template, require(‘/themes/flatsome/woocommerce/content-product.php’), do_action(‘woocommerce_shop_loop_item_title’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woocommerce_template_loop_product_title, get_the_title, apply_filters(‘the_title’), WP_Hook->apply_filters, call_user_func_array, woo_title_limit->wtl_shorten_my_product_title

3.
NOTICE: wp-content/plugins/woo-title-limit/woo-title-limit.php:508 – Undefined index: wtl_checkbox_etc_home
require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), include(‘/themes/flatsome/page-blank.php’), the_content, apply_filters(‘the_content’), WP_Hook->apply_filters, call_user_func_array, flatsome_contentfix, do_shortcode, preg_replace_callback, do_shortcode_tag, call_user_func, ux_products, wc_get_template_part, load_template, require(‘/themes/flatsome/woocommerce/content-product.php’), do_action(‘woocommerce_shop_loop_item_title’), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woocommerce_template_loop_product_title, get_the_title, apply_filters(‘the_title’), WP_Hook->apply_filters, call_user_func_array, woo_title_limit->wtl_shorten_my_product_title

Best Regards
Andreas

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