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 ('7e854fcdff2b8d9b1f8e6fd18d4c36a3', -1, 1513134811, 1513134811, '36e37e45', 1, 0, 0)

Line : 211
File : sessions.php