After installing Theme I can't save my drafts

Hi, bought your theme on February 13th and was happy to get to work and install it. However, after I installed, I noticed that after working on my drafts, I can't save them again. It throws these errors

`Please specify the table ID
Warning: Cannot modify header information - headers already sent by (output started at /home2/folder/example.com/wp-includes/l10n.php:301) in /home2/folder/example.com/wp-admin/post.php on line 223

Warning: Cannot modify header information - headers already sent by (output started at /home2/folder/example.com/wp-includes/l10n.php:301) in /home2/folder/example.com/wp-includes/pluggable.php on line 1266

Warning: Cannot modify header information - headers already sent by (output started at /home2/folder/example.com/wp-includes/l10n.php:301) in /home2/folder/example.com/wp-includes/pluggable.php on line 1269'

It keeps asking me to provide my table ID. But this doesn't happen when I publish or update a post.