Correct the serious ERROR

There is serious error in plugin: bad dislike calculation. Often votes from Like migrate to Dislike.
Author do not respond.
Everybody plugin user MUST FIX THIS ERROR HIMSELF.

1. In WP panel on the left press Plugins>Plugin editor
2. On the rigth side chose Booster Extension
3. Edit file: booster-extension/inc/backend/twp-be-like-dislike.php
4. in Line 74 you will find:

                        if( $dis_like_ips ){ 

                            $likes = $likes - 1;
                            $current_ip = booster_extension_get_ip_address();
                            $dis_like_ip_list = booster_remove_element( $dis_like_ips, $current_ip );

                            update_post_meta( $post_ID, 'twp_be_dislike_like_count', $likes );
                            update_post_meta( $post_ID, 'twp_be_ip_address_lists_dislike', $dis_like_ip_list );

                        }

5. Correct 3 variables to Dislike

                        if( $dis_like_ips ){ 

                            $dislike_likes = $dislike_likes - 1;
                            $current_ip = booster_extension_get_ip_address();
                            $dis_like_ip_list = booster_remove_element( $dis_like_ips, $current_ip );

                            update_post_meta( $post_ID, 'twp_be_dislike_like_count', $dislike_likes );
                            update_post_meta( $post_ID, 'twp_be_ip_address_lists_dislike', $dis_like_ip_list );

                        }