Website down

One minute it was working fine and the next I get an Error 500 in browser.

I checked the error.log and I see this at the bottom:

[error] 22130#0: *33 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Error: Call to undefined function wp() in /var/www/irelandesign.com/htdocs/wp-blog-header.php:14 Stack trace: #0 /var/www/irelandesign.com/htdocs/index.php(17): require() #1 {main} thrown in /var/www/irelandesign.com/htdocs/wp-blog-header.php on line 14” while reading response header from upstream, client: 79.97.56.225, server: irelandesign.com, request: “GET /22222 HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9070”, host: “irelandesign.com

Any ideas?

Hii

Could you please try the command

ee stack status

ee stack restart

and provide the o/p.