Help with an error message when uploading theme

I was installing a theme (Ichthys, for church websites). After I had installed it, this error message appeared at the top of my screen:
Warning: Invalid argument supplied for foreach() in /home3/ropc/public_html/dev/wp-content/themes/ichthys-1/functions.php on line 132

I originally ignored it, but the next time I tried to sign in, there were a lot more error messages below it, and it would not allow me to sign in at all. The other admin at the site signed in to FTP and fixed it, and updated the PHP to 5.6 as the theme support suggested. But I just tried to activate it again and got the same message. So I just wondered, does anyone know what that message means? I have also contacted the theme support but I would like any advice as to what to do next. I might also add that I am not very tech savvy when it comes to coding, so this is all pretty confusing to me. Any advice would be really appreciated. Thanks!