title: Wordpress issue,after update
body: <p>After wordpress is updated automaticlly i received an error in email with this error messages  </p>
  
  <pre>Error Details
  =============
  An error of type E_ERROR was caused in line 369 of the file /home/onehostscp/public_html/murtishi-bau.ch/wp-content/plugins/thememove-core/export/export.php. Error message: Uncaught Error: Class 'ThemeMove_Export' not found in /home/onehostscp/public_html/murtishi-bau.ch/wp-content/plugins/thememove-core/export/export.php:369
  Stack trace:
  #0 /home/onehostscp/public_html/murtishi-bau.ch/wp-content/plugins/thememove-core/thememove-core.php(50): include_once()
  #1 /home/onehostscp/public_html/murtishi-bau.ch/wp-settings.php(360): include_once('/home/onehostsc...')
  #2 /home/onehostscp/public_html/murtishi-bau.ch/wp-config.php(90): require_once('/home/onehostsc...')
  #3 /home/onehostscp/public_html/murtishi-bau.ch/wp-load.php(37): require_once('/home/onehostsc...')
  #4 /home/onehostscp/public_html/murtishi-bau.ch/wp-login.php(12): require('/home/onehostsc...')
  #5 {main}
    thrown</pre>  
  
  <p>I deactived the plugin but the error still exist i receive this :  </p>
  
  <pre>Fatal error: Uncaught Error: Call to undefined function header_class() in /home/onehostscp/public_html/murtishi-bau.ch/wp-content/themes/structure/templates/header-preset-06.php:34 Stack trace: #0 /home/onehostscp/public_html/murtishi-bau.ch/wp-content/themes/structure/header.php(36): include() #1 /home/onehostscp/public_html/murtishi-bau.ch/wp-includes/template.php(722): require_once('/home/onehostsc...') #2 /home/onehostscp/public_html/murtishi-bau.ch/wp-includes/template.php(671): load_template('/home/onehostsc...', true) #3 /home/onehostscp/public_html/murtishi-bau.ch/wp-includes/general-template.php(41): locate_template(Array, true) #4 /home/onehostscp/public_html/murtishi-bau.ch/wp-content/themes/structure/page.php(28): get_header() #5 /home/onehostscp/public_html/murtishi-bau.ch/wp-includes/template-loader.php(98): include('/home/onehostsc...') #6 /home/onehostscp/public_html/murtishi-bau.ch/wp-blog-header.php(19): require_once('/home/onehostsc...') #7 /home/onehostscp/public_html/murtishi-bau.ch/index.php(17): req in /home/onehostscp/public_html/murtishi-bau.ch/wp-content/themes/structure/templates/header-preset-06.php on line 34
  
  There has been a critical error on your website.
  
  Learn more about debugging in WordPress.
  
  Notice: ob_end_flush(): failed to send buffer of zlib output compression (0) in /home/onehostscp/public_html/murtishi-bau.ch/wp-includes/functions.php on line 4552</pre>  
  
  <p>Here is code of header-preset-06.php on line 34  and the <a href="https://murtishi-bau.ch" rel="nofollow noreferrer">LINK</a> of website</p>
  
  <pre><code>    &lt;header &lt;?php header_class(); ?&gt;&lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&gt; role="banner" itemscope="itemscope" itemtype="http://schema.org/WPHeader"&gt;
      &lt;div class="container"&gt;
          &lt;div class="row"&gt;
              &lt;div class="col-md-3 col-xs-6"&gt;
                  &lt;div class="site-branding"&gt;
                      &lt;?php
                      global $thememove_custom_logo;
                      if ( $thememove_custom_logo ) {
                          ?&gt;
                          &lt;a href="&lt;?php echo esc_url( home_url( '/' ) ); ?&gt;" rel="home"&gt;
                              &lt;img src="&lt;?php echo $thememove_custom_logo; ?&gt;" alt="logo"/&gt;
                          &lt;/a&gt;
  </code></pre>