phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '83e54cbdaf9e3e1569a7fea79ce1e49a' 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 ('83e54cbdaf9e3e1569a7fea79ce1e49a', -1, 1766002731, 1766002731, 'd849d8bf', 2, 0, 0)

Line : 187
File : sessions.php