cant able to login to my wordpress site

i installed BPS plugin in my wordpress website https://devilxscience.in . i turned on the maintance option but that time my IP address changed so i cant login to my dashboard , so i deleted BPS through FTP after that my site get works. after a 3 or 4 days i cant login to my site but my site is live . when i try to login it appers blank. then i tried to delete .htaccess file on my Public_html but i cant able to delete it. if i delete it means the next second itself a new .htaccess file will appers there. but now whats the problem is the .htaccess file is hidden some where in Public_html. i cant search it. my question is there is any link to my login gets blank because of the .htaccess file on public_html?? how to delete .htaccess file from my site ?? is there any solution for this???? please help me.