Warnings following install of Theme

Just today, per your support response, I successfully re-uploaded the Enfold theme through the FTP to correct Warnings in one website, but it is not working for another, I am now also locked out of wp-admin CMS.
Here again are the Warnings I am getting:

Warning: session_start() [function.session-start]: open(/tmp/sess_0b575e04f871d75506610557b876e4c2, O_RDWR) failed: Permission denied (13) in /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php on line 32

Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php on line 32

Warning: Cannot modify header information – headers already sent by (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-login.php on line 425

Warning: Cannot modify header information – headers already sent by (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-login.php on line 438

Warning: Cannot modify header information – headers already sent by (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-includes/pluggable.php on line 925

Warning: Cannot modify header information – headers already sent by (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-includes/pluggable.php on line 926

Warning: Cannot modify header information – headers already sent by (output started at /home/promise/public_html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php:32) in /home/promise/public_html/wp-includes/pluggable.php on line 927

What can I do to get this resolved and back into the admin dashboard?