phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac2b87ef1459738332d857b5c1c15dff' 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 ('ac2b87ef1459738332d857b5c1c15dff', -1, 1732494037, 1732494037, '340e1b7a', 0, 0, 0)

Line : 192
File : sessions.php