phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f42939a7f59f6065a554b898c44c9c23', -1, 1462103027, 1462103027, '1716cf46', -1, 0, 0)

Line : 187
File : sessions.php