phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '64ef423b4f6caec52405212721b838bc' 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 ('64ef423b4f6caec52405212721b838bc', -1, 1761582495, 1761582495, 'c31412cc', -9, 0, 0)

Line : 187
File : sessions.php