[Thu Sep 21 18:18:19.598405 2023] [negotiation:error] [pid 15211] [client 192.71.3.26:36069] AH00690: no acceptable variant: /var/www/apache2/error/HTTP_NOT_FOUND.html.var [Thu Sep 21 18:18:19.673291 2023] [negotiation:error] [pid 7874] [client 192.71.103.173:55943] AH00690: no acceptable variant: /var/www/apache2/error/HTTP_NOT_FOUND.html.var [Thu Sep 21 18:18:19.753472 2023] [negotiation:error] [pid 7873] [client 192.71.38.71:16275] AH00690: no acceptable variant: /var/www/apache2/error/HTTP_NOT_FOUND.html.var