phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ad1ad9f00c752852dc7f6368c23b5e07' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('ad1ad9f00c752852dc7f6368c23b5e07', -1, 1770991149, 1770991149, 'd849d87b', -9, 0)

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