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 ('973acc78692c6df0d4a0cbf5e3333f78', -1, 1571272488, 1571272488, '03e7e46d', 4, 0, 0)

Line : 218
File : sessions.php