I can't get a customers website to show up at all and I need it up asap 

I can't EVEN log in to the admin part of page. When I did I went in and updated plugins. Instead of contact form I put in their email address. Didn't do anything major and then this happened. They really need this site up like yesterday.  I've been working for hours on end on this and I can't figure this out for the life of me.  I hope someone can please help!

Here is the error I got when going to the page...


Fatal error: Call to a member function get_page_permastruct() on a non-object in /homepages/15/d265658961/htdocs/diecastmania/wp-includes/link-template.php on LINE 350Could it be that the web server / web host needs to reboot the server?

Were you messing with PHP in which there is an issue/typo at line 350?

Have already read over the WordPress documentation?
https://codex.wordpress.org/
WordPress is WRITTEN in PHP and one would not want to modify it unless thee was a very big resewn. Changes to the presentation are done inside of the WORD press program, not at the source code level.


Have you installed any plugin (like Theme My Login) around the time of this error?