[Plugin: Register Plus] Failure when uploading custom logo

When I try to upload a custom logo via the Register Plus interface, I receive the following error:

Warning: move_uploaded_file(/home/user/website//home/user/website/wp-content/uploads/Logo.png) [function.move-uploaded-file]: failed to open stream: No such file or directory in /home/user/website/wp-content/plugins/register-plus/register-plus.php on line 274

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move ‘/tmp/phpG353Ef’ to ‘/home/user/website//home/user/website/wp-content/uploads/Logo.png’ in /home/user/website/wp-content/plugins/register-plus/register-plus.php on line 274

Not sure what the problem is exactly. Anyone have any ideas?