A New Theme, Part 2: When Your New Theme Crashes Your Blog
ProBlogger
JANUARY 19, 2013
Then you see this message: Fatal error: Call to undefined function wp_get_theme() in /home/colores/public_html/allcolores.com/wp-content/themes/path/library/functions/utility.php on line 119. As you browse through themes online and explore their demo sites, there is no way for you to guess which theme would cause your blog to crash.
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