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 ('48a14f635e96c695375916f526a60461', -1, 1524137767, 1524137767, '1714f5c0', -2, 0, 0)

Line : 187
File : sessions.php