Having major problems with login into my WP site

I can’t login to my site I get the following error messages;

Warning: include(nectar/meta/meta-config.php): failed to open stream: No such file or directory in /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php on line 1948

Warning: include(nectar/meta/meta-config.php): failed to open stream: No such file or directory in /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php on line 1948

Warning: include(): Failed opening ‘nectar/meta/meta-config.php’ for inclusion (include_path=’.:/opt/php54/lib/php’) in /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php on line 1948

Warning: Cannot modify header information – headers already sent by (output started at /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php:1948) in /home1/jayneal/public_html/jaynealinternational.com/wp-login.php on line 387

Warning: Cannot modify header information – headers already sent by (output started at /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php:1948) in /home1/jayneal/public_html/jaynealinternational.com/wp-login.php on line 400

Warning: Cannot modify header information – headers already sent by (output started at /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php:1948) in /home1/jayneal/public_html/jaynealinternational.com/wp-includes/pluggable.php on line 955

Warning: Cannot modify header information – headers already sent by (output started at /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php:1948) in /home1/jayneal/public_html/jaynealinternational.com/wp-includes/pluggable.php on line 956

Warning: Cannot modify header information – headers already sent by (output started at /home1/jayneal/public_html/jaynealinternational.com/wp-content/themes/salient/functions.php:1948) in /home1/jayneal/public_html/jaynealinternational.com/wp-includes/pluggable.php on line 957

I am a bit un-tech so please explain fully