phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a128b4c57840a7a8a3e8ecbe3c0d30d4' 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 ('a128b4c57840a7a8a3e8ecbe3c0d30d4', -1, 1769422856, 1769422856, 'd849d83c', 1, 0, 0)

Line : 187
File : sessions.php