You can use FTP to deactivate that theme and/or plugins –
http://codex.ww.wp.xz.cn/Login_Trouble
Moderator
Jan Dembowski
(@jdembowski)
Forum Moderator and Brute Squad
Second theme functions.php file issue this evening…
It’s this file that’s causing the problem for you.
/home/content/g/r/e/gree0138/html/wp-content/themes/glptheme/functions.php
I’m not sure how adding a plugin would mung that file, did you edit it? If you have backup of that theme and all the files then you can try restoring it. From your site’s style.css it looks like a nice custom theme.
If it is that theme file then you can get back into your WordPress installation by using FTP or whatever file management tool your host has provided you and make a backup copy of that glptheme directory.
Once you have that copy safely stored somewhere delete the one glptheme directory. Just that one and nothing else.
Please make sure you do have a backup copy of that file first. Deleting that directory should let you back into the WordPress dashboard. But if you don’t make a copy you’ll regret it. 😉
Then you’d visit http://www.buysoapnuts.com/wp-admin/themes.php login and hopefully you’ll get a message about switching to Twenty Eleven or Twenty Twelve.
From there you can deactivate that recent plugin and/or re-install that theme.