phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1d240f27cd78d22e4dd1f4892c650b3c' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1d240f27cd78d22e4dd1f4892c650b3c', -1, 1785110410, 1785110410, 'd849d80b', -9, 0, 0)

Line : 187
File : sessions.php