Call to undefined function request_filesystem_credentials()

What’s the context?

should i be worried about this? is this functioning correctly still?

2015/08/28 17:45:47 [error] 3004#0: *348493 FastCGI sent in stderr: “PHP message: PHP Fatal error: Call to undefined function request_filesystem_credentials() in /var/www/wordpress/wp-content/plugins/nginx-cache/nginx-cache.php on line 250” while reading response header from upstream, client: 188.114.98.64, server: nerdreactor.com, request: “POST /2011/10/18/giveaway/trackback/ HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php5-fpm.sock:”, host: “xxx.com”, referrer: “https://www.facebook.com/video.php?v=1184348088248515”

Did that error only occur once, or does it occur repeatedly?

I’m getting it today. As soon as I switch themes to Photocrati it white screens and the only way recover is to run the SQL below against the database.

I have a WordPress multisite install which otherwise works fine. I can do some limited experimentation, but it’s a production site so I can’t do too much that could break it.

Note that I use HHVM, the Facebook written PHP VM, rather than standard PHP. I run on Amazon Linux, obviously on one of their VPS systems.

[Tue Jan 26 17:31:30 2016] [hphp] [2979:7f1b01229700:1979:000001] [] \nFatal error: Call to undefined function request_filesystem_credentials() in /var/www/wordpress/wp-content/plugins/nginx-cache/nginx-cache.php on line 250

UPDATE wp_options SET option_value = ‘twentysixteen’ WHERE option_name = ‘template’;
UPDATE wp_options SET option_value = ‘twentysixteen’ WHERE option_name = ‘stylesheet’;
UPDATE wp_options SET option_value = ‘Twenty Sixteen’ WHERE option_name = ‘current_theme’;

Try disabling the plugin, then reactivating it.

You can’t – the entire website including admin area white screens.

Try deleting the plugin via (S)FTP.

Yeah I did. I was telling you in case you wanted to fix it ??

Ah. I’ve already fixed this on Github a long time ago. I’ll release an update on wp.org soon.

Would you mind posting a link to your github project?

Found it – https://github.com/tillkruss/Nginx-FastCGI-Cache