phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b9ddd975a6af9e475243ff96d5fbd53f' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b9ddd975a6af9e475243ff96d5fbd53f', -1, 1757110105, 1757110105, 'd849d811', -4, 0, 0)

Line : 187
File : sessions.php