Fix PHP admin parts of RSS script to work on Hostagator again

Don't bid more than $30 for this easy job I bought a few years ago PHP script which create websites from RSS I try to install it again on Hostgator and all is OK - [login to view URL] but I can't login to my admin panel (I get only blank page) I believe that maybe it's because Hostgator use new PHP version or something like that. Your job is to fix this script so I can login to admin panel again and add here all info I want. After You bid I will send You PHP code from admin part so You can look at it what's is wrong offline If it's not enough I will allow You to login with Team Viewer to my hostgator account so You can check for problems here (I don't want to reveal login and password to Hostgator for obvious reasons so before You login to my computer I will connect FTP client to hostgator so You will have access to files and also to cPanel so You can modify/upload PHP files) After You login on my computer You can install all tolls You need to do this job (it's clean Windows 10 installation) but I will watch all your action here.