phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a31f63861303a85b541b355cc5a4042c' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a31f63861303a85b541b355cc5a4042c', -1, 1757587467, 1757587467, 'd849d821', 13, 0, 0)

Line : 187
File : sessions.php