Undefined index error on Subscription page

It seems the old problem came back with plugin version 4.7.3

And in a very massive way:
Notice: Undefined index: name_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1345 Notice: Undefined index: surname_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1351 Notice: Undefined index: list_1_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_2_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_3_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_4_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_5_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_6_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_7_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_8_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_9_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_10_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_11_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_12_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_13_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_14_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_15_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_16_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_17_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_18_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_19_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: list_20_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1377 Notice: Undefined index: profile_1_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_2_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_3_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_4_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_5_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_6_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_7_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_8_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_9_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_10_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_11_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_12_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_13_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_14_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_15_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_16_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_17_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_18_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_19_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: profile_20_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1393 Notice: Undefined index: privacy_status in /var/www/vhosts/***/wp-content/plugins/newsletter/subscription/subscription.php on line 1433

Somebody knows if have to fix something to solve this?