HTTP Error 500 NGINX Log PHP Wordpress Site

Hi All, I have a HTTP Error 500 on one of our Droplet’s NGINX Virtual Hosts: www.rjschauer.com

The nginx error log shows:

2021/01/20 03:56:54 [error] 321876#321876: *942104 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Call to undefined function _deprecated_file() in /var/www/rjschauer.com/wp-includes/locale.php:11
Stack trace:
#0 {main}
  thrown in /var/www/rjschauer.com/wp-includes/locale.php on line 11" while reading response header from upstream, client: 193.106.30.100, server: rjschauer.com, request: "POST /wp-includes/locale.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "rjschauer.com"
2021/01/20 06:27:37 [crit] 321876#321876: *943882 SSL_do_handshake() failed (SSL: error:141CF06C:SSL routines:tls_parse_ctos_key_share:bad key share) while SSL handshaking, client: 74.82.47.5, server: 0.0.0.0:443
2021/01/20 07:53:20 [crit] 321876#321876: *944631 SSL_do_handshake() failed (SSL: error:141CF06C:SSL routines:tls_parse_ctos_key_share:bad key share) while SSL handshaking, client: 192.241.193.87, server: 0.0.0.0:443
2021/01/20 12:47:44 [crit] 321876#321876: *947035 SSL_do_handshake() failed (SSL: error:141CF06C:SSL routines:tls_parse_ctos_key_share:bad key share) while SSL handshaking, client: 66.240.219.133, server: 0.0.0.0:443

Does anyone know what this means or how to resolve it?

Thanks, Will