phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '464db6aeda52b221dcda5d9a25dd66b0' 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 ('464db6aeda52b221dcda5d9a25dd66b0', -1, 1761061880, 1761061880, 'd849d81d', 2, 0, 0)

Line : 187
File : sessions.php