phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4a547b3cbc5d234dd4cbf43c84a4780b' 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 ('4a547b3cbc5d234dd4cbf43c84a4780b', -1, 1769312426, 1769312426, 'd849d83c', 1, 0, 0)

Line : 187
File : sessions.php