Association management system issues
This doesn't happen when I use other browsers. There are other issues with this page as well. I contacted the help desk and they couldn't replicate the issue. Since this doesn't occur on other browsers such as Edge and Opera these no doubt is the Firefox browser
The web address is https://nafi.memberclicks.net/administrator/
Opaite Mbohovái (1)
When I try to open your link, Firefox adds #/login to the url and I get what is shown in the screenshot (the rest of the page is blank). Perhaps you are already logged in.
When I have had problems like that, I have fixed them by changing zoom settings.