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Fatal error: Uncaught Error: in_array(): Argument #2 ($haystack) must be of type array, bool given
in /mnt/web006/d0/10/52591910/htdocs/cc/wp-content/themes/ccb_head/inc/multisite.php on line 157

Call stack:

1. in_array()
   wp-content/themes/ccb_head/inc/multisite.php:157
2. multisite::mu_blog_prefixes()
   wp-content/themes/ccb_head/inc/multisite.php:225
3. multisite::mu_posts()
   wp-content/themes/ccb_head/mu-tags.php:30
4. include()
   wp-includes/template-loader.php:106
5. require_once()
   wp-blog-header.php:19
6. require()
   index.php:17