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 ('41ab07be9dea9342c91fa6f8ff9e2625', -1, 1503283065, 1503283065, '36a26ff7', 2, 0, 0)

Line : 189
File : sessions.php