phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1a877945d7ef3a030485b2f4f2b2396b' 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 ('1a877945d7ef3a030485b2f4f2b2396b', -1, 1738208661, 1738208661, '12bea032', 6, 0, 0)

Line : 187
File : sessions.php