Error in links in pluggin

Hello!
There are problems with links here: http://www.pravoconsult.com.ua/question/chi-ye-porushennya-zakonu-pro-dekomunizatsiyu-pri-perejmenuvanni-vulitsi

1) links of admin ( error 404)
2) links in answer (error 404), because pluggin added unnessesery link to my site before link.

Please, fix it.

https://wordpress.org/plugins/dw-question-answer/