phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '31a401798f4ccf284f030b643e66567d' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('31a401798f4ccf284f030b643e66567d', -1, 1752764600, 1752764600, 'd849d8f6', 2, 0)

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