Looking for developer to resolve my log in form coding issue for my Kotlin page

Hi in my page https://app.repostify.io/login which is a kotlin page the logins in mobile is acting very strange and I need support for someone who can resolve this issue please see the screenrecording please. https://drive.google.com/file/d/1tppg86Y5n4vRcmcIWBKKpW-AW6IrrVa0/view?usp=sharing Can you kindly tell me the issue and what can be done to resolve this as soon as possible. Bonus if can be diagnosed and resolved quickly I want to make sure this log in page works for desktop and mobile please