Your apache error log is full of messages like this:
[Tue Jan 14 11:44:32.700303 2020] [proxy_fcgi:error] [pid 4648:tid 140556067817216] (70007)The timeout specified has expired: [client 127.0.0.1:55048] AH01075: Error dispatching request to : (polling)
Can you check if your server is under heavy traffic? Please check that you are not affected by a DoS attack by following steps from this guide.
Can you also execute the following command and tell me if you get any output?
sudo find /opt/bitnami/wordpress -name wp-vcd.php