SGLab-NOA Mysql Data Manager Error :

Can't Insert New Records To This Table ( INSERT INTO `sessions` ( `session_id` , `session_hash` , `userid` , `ip` , `agent` , `lastactivity` , `location` , `data` ) VALUES ('35522dcf3a827581a17812f809f13e3b', '722b6fbb4bdf80cfc93ef4ffffea7bfe', '', '54.81.232.54', 'CCBot/2.0 (http://commoncrawl.org/faq/)', '1527214697', '/index.php?news&do=view&print=1'', 'a:0:{}'); )
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'a:0:{}')' at line 2