phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9bbf16e0e016d541e353ac7b470d70b6' 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 ('9bbf16e0e016d541e353ac7b470d70b6', -1, 1755641501, 1755641501, 'd849d800', 7, 0, 0)

Line : 187
File : sessions.php