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 ('7c9da08241601e0d14b4492abb1c9431', -1, 1519530936, 1519530936, '36a71dd0', 0, 0, 0)

Line : 211
File : sessions.php