phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51c9635c2751a62fbe9773fb755870b9' 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 ('51c9635c2751a62fbe9773fb755870b9', -1, 1714206522, 1714206522, '0390fc8c', -8, 0, 0)

Line : 187
File : sessions.php