login error

after upload data to new host and backup databass, see eeror on page:
Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/wp-postratings/wp-postratings.php on line 1316

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/wassup/wassup.php on line 1434

Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/mycaptcha/MyCaptcha.php on line 80

Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/mycaptcha/MyCaptcha.php on line 80

I can’t login, it report error:

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/wp-postratings/wp-postratings.php on line 1316

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/wassup/wassup.php on line 1434

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-login.php on line 267

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-login.php on line 279

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-includes/pluggable.php on line 595

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-includes/pluggable.php on line 596

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-includes/pluggable.php on line 597

Warning: Cannot modify header information – headers already sent by (output started at /home/jenny82/public_html/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php:4157) in /home/jenny82/public_html/wp-content/plugins/ylsy_permalink_redirect.php on line 389

please help, how fix error ?