phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c3c0dc1b7874cc173bfd180cd3ae2cc4' for key 'phpbb_sessioni.PRIMARY'

INSERT INTO phpbb_sessioni (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c3c0dc1b7874cc173bfd180cd3ae2cc4', -1, 1778469188, 1778469188, 'd849d8c9', -9, 0, 0)

Line : 187
File : sessions.php