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 ('5c4f65ff0c8c3d9f94906cfd7a9977dc', -1, 1542753865, 1542753865, '365207e7', 19, 0, 0)

Line : 189
File : sessions.php