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 ('799f13439da56a8d6e1229a76170b979', -1, 1568906487, 1568906487, '23afbf96', 64, 0, 0)

Line : 187
File : sessions.php