phpBB : Critical Error

if the following error message can not help you to solve the problem,please contact the Administrator. [email protected],please make sure to send the error message together to us,thank you!
Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '970fac1c8067c4080f9eff5cfc17bfee' 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 ('970fac1c8067c4080f9eff5cfc17bfee', -1, 1714360316, 1714360316, '340e7e4a', 394, 0, 0)

Line : 186
File : sessions.php