phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a924dc6838e4d5858a26c043c84982bf' 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 ('a924dc6838e4d5858a26c043c84982bf', -1, 1771150580, 1771150580, 'd849d800', -9, 0, 0)

Line : 187
File : sessions.php