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 ('420d901b2c2dd845df5fdf49fb8a9899', -1, 1524288849, 1524288849, '3650738c', -1, 0, 0)

Line : 211
File : sessions.php