phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '486fedbcfddd6e5c00efb3b9affc9c13' 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 ('486fedbcfddd6e5c00efb3b9affc9c13', -1, 1762815386, 1762815386, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php