phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '256779d6c893fbcb93838699e62b7338' for key 'PRIMARY'

INSERT INTO bb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('256779d6c893fbcb93838699e62b7338', -1, 1738344455, 1738344455, '0d3bd901', 6, 0, 0)

Line : 187
File : sessions.php