phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21a487dab8f632e500dd3dce9ddd16d1' for key 'PRIMARY'

INSERT INTO phpbb1_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('21a487dab8f632e500dd3dce9ddd16d1', -1, 1714329727, 1714329727, '12d9d293', 2, 0, 0)

Line : 187
File : sessions.php