phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9d57ec0db12b0a50ce62bcab9ed1c97d' 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 ('9d57ec0db12b0a50ce62bcab9ed1c97d', -1, 1771777516, 1771777516, 'd849d890', 1, 0, 0)

Line : 187
File : sessions.php