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 ('4d2065a3ebc0e8e39c7eade57d2781d3', -1, 1524289662, 1524289662, '3650738c', -1, 0, 0)

Line : 211
File : sessions.php