phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '782a19e69b0b13d21e3f9e51a600fc13' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('782a19e69b0b13d21e3f9e51a600fc13', -1, 1769459906, 1769459906, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php