phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51a5d87b6945dc90aa2e536ef552e6ee' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('51a5d87b6945dc90aa2e536ef552e6ee', -1, 1772201288, 1772201288, 'd849d834', 8, 0)

Line : 180
File : /www/includes/sessions.php