not able to get into the admin

Hi, I’m currently not able to get into the admin section of my site. When I try to get into the section, I keep getting errors such as:

Warning: Cannot modify header information – headers already sent by (output started at /home1/nawaipak/public_html/wp-content/plugins/easy-facebook-likebox/includes/easy-custom-facebook-feed-widget.php:3) in /home1/nawaipak/public_html/wp-includes/pluggable.php on line 1210

• This topic was modified 7 years, 4 months ago by Steven Stern (sterndata). Reason: changed title from "help"