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“There has been a critical error on your website. Learn more about debugging in WordPress.” and web error log reports “Call to undefined function the_field()” [Solved]

After an upgrade of WordPress, the site reported “There has been a critical error on your website. Learn more about debugging in WordPress.”. When investigating the web server log files, errors reporting “Call to undefined function the_field()”.

Solution: During the upgrade process, the plugin “Advanced Custom Fields” had been disabled. By activating the plugin, the problem was solved.

Mega Menu doesn’t display down arrow for submenus

The WordPress plugin Mega Menu has the possibility to display a “down arrow” for a menu item where a submenu is available (i.e. the menu item has “children”). The problem was that the arrow was not displaying.

It turned out it was a collission with the theme, Cherry Framework 4. In the settings of the theme’s native menu, there is a possibility to enable “arrow markups”. When this is enabled in Cherry Framework 4, the arrows in Mega Menu is not displayed.

Solution: Go to Cherry -> Options -> Navigation -> Set Arrows Markup = off

Cherry Framework 4 header not using full page width when breadcrumbs are disabled

When you disable breadcrumbs in Cherry Framework 4, it still reserves space for it in the header/title section of the page. This is a bit annoying, because it makes the title wrap when there still is space on the right side.

A simple CSS solution can fix this. By applying this, the breadcrumbs will not be visible even if they are enabled again.

.cherry-breadcrumbs .col-md-5 { /* no breadcrumbs, title in full width */
width: 100%;
}
.cherry-breadcrumbs .col-md-7 { /* no breadcrumbs, hide the breadcrumb container */
display: none;
}