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 ('b6f1b8f9a218089da20f8eeab65b6392', -1, 1529604435, 1529604435, '36a6a069', -4, 0, 0)

Line : 219
File : sessions.php