Help!

When i try to login to my dashboard, I get these errors: – no idea what they mean – and i don’t know how to login to an FTP to fix it – can someone please help (step by step?) I’d really appreciate it!

Warning: Missing argument 2 for wp_widget() in /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php on line 76

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-login.php on line 354

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-login.php on line 366

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-includes/pluggable.php on line 702

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-includes/pluggable.php on line 703

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-includes/pluggable.php on line 704

Warning: Cannot modify header information – headers already sent by (output started at /home/content/j/u/l/julieschoerke/html/wp-includes/widgets.php:76) in /home/content/j/u/l/julieschoerke/html/wp-includes/pluggable.php on line 897

[closed as duplicate of http://wordpress.org/support/topic/help-282?replies=3 – continue with the original topic]