Cannot update/add events with plugin enabled

We cannot add new events or update new events with the plugin enabled. It was working fine until now and we have to disable it if we want to add anything new or update. When we try to update we see the following errors:

Notice: Undefined index: nd_options_meta_box_location_coordinates in /var/www/wp-content/plugins/nd-shortcodes/addons/locations/metabox/index.php on line 60

Notice: Undefined index: nd_options_meta_box_location_title in /var/www/wp-content/plugins/nd-shortcodes/addons/locations/metabox/index.php on line 63

Notice: Undefined index: nd_options_meta_box_location_sub_title in /var/www/wp-content/plugins/nd-shortcodes/addons/locations/metabox/index.php on line 66

Notice: Undefined index: nd_options_meta_box_location_description in /var/www/wp-content/plugins/nd-shortcodes/addons/locations/metabox/index.php on line 69

Notice: Undefined index: nd_options_meta_box_page_color in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 87

Notice: Undefined index: nd_options_meta_box_page_title in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 93

Notice: Undefined index: nd_options_meta_box_page_margin in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 100

Notice: Undefined index: nd_options_meta_box_page_header_img in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 231

Notice: Undefined index: nd_options_meta_box_page_header_img_title in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 238

Notice: Undefined index: nd_options_meta_box_page_header_img_position in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/page/index.php on line 245

Notice: Undefined index: nd_options_meta_box_post_color in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 87

Notice: Undefined index: nd_options_meta_box_post_title in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 93

Notice: Undefined index: nd_options_meta_box_post_margin in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 99

Notice: Undefined index: nd_options_meta_box_post_sidebar_position in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 157

Notice: Undefined index: nd_options_meta_box_post_header_img in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 286

Notice: Undefined index: nd_options_meta_box_post_header_img_title in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 292

Notice: Undefined index: nd_options_meta_box_post_header_img_position in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 298

Notice: Undefined index: nd_options_meta_box_post_quote in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 350

Notice: Undefined index: nd_options_meta_box_post_quote_author in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 356

Notice: Undefined index: nd_options_meta_box_post_link_title in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 410

Notice: Undefined index: nd_options_meta_box_post_link_url in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 416

Notice: Undefined index: nd_options_meta_box_post_media_code in /var/www/wp-content/plugins/nd-shortcodes/addons/metabox/post/index.php on line 466

Notice: Undefined index: nd_options_meta_box_woocommerce_color in /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php on line 59

Notice: Undefined index: nd_options_meta_box_woocommerce_header_img in /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php on line 190

Notice: Undefined index: nd_options_meta_box_woocommerce_header_img_title in /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php on line 197

Notice: Undefined index: nd_options_meta_box_woocommerce_header_img_position in /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php on line 204

Warning: Cannot modify header information – headers already sent by (output started at /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php:59) in /var/www/wp-admin/post.php on line 222

Warning: Cannot modify header information – headers already sent by (output started at /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php:59) in /var/www/wp-includes/pluggable.php on line 1251

Warning: Cannot modify header information – headers already sent by (output started at /var/www/wp-content/plugins/nd-shortcodes/addons/woocommerce/metabox/index.php:59) in /var/www/wp-includes/pluggable.php on line 1254

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