kringsen

Hi here are some kmore info about my problem.

When I try to watch my blog
I get this message

Fatal error: Call to undefined function is_multisite() in /home/kringsen/public_html/wp-includes/wp-db.php on line 505

I can’t access my blog all at a sutten???

I haven’t had any problems until today

https://kringsenterprises.com
gives me an errormessage

I have absolutely no idea about how to go around all of this :o(

Please help

Thanks
Annegrete