phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '15b7ce772b374454646643042d1ee8e7' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('15b7ce772b374454646643042d1ee8e7', -1, 1757466339, 1757466339, 'd849d883', 31, 0)

Line : 180
File : /www/includes/sessions.php