phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '509bff37dbc13807dee7487d66fef82c' 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 ('509bff37dbc13807dee7487d66fef82c', -1, 1765185385, 1765185385, 'd849d8bc', -4, 0, 0)

Line : 187
File : sessions.php