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 ('9ab57ddce44b9ccab27285aa3c4a4123', -1, 1566792816, 1566792816, '23ad30e0', 15, 0, 0)

Line : 189
File : sessions.php