I'm trying to sign in to my blog and I get this error. I can click on any link but it will let me log in again to go there.

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 66

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 67

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 68

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 69

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 81
setcookie cookieb2evouser failed!

Warning: Cannot modify header information - headers already sent by (output started at /home/adamsweb/public_html/blog/conf/_formatting.php:610) in /home/adamsweb/public_html/blog/b2evocore/_functions_users.php on line 83
setcookie cookieb2evouser failed!