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 ('aadfabf4c6d97551c29c5290071d1467', -1, 1419189598, 1419189598, '36594fb7', -1, 0, 0)

Line : 187
File : sessions.php