phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9ad5a2fd34bc955c5a0a7e60f4cf14dd' 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 ('9ad5a2fd34bc955c5a0a7e60f4cf14dd', -1, 1770915502, 1770915502, 'd849d872', -4, 0, 0)

Line : 187
File : sessions.php