Error after migration

Part of error message

• Call to undefined function…
• Use of undefined constant…
• Empty space, where the sliders should be after updating the Smart Slider.
• Empty space, where the sliders should be after updating your Joomla.
• Empty space, where the sliders should be after moving the website to another location.

Solution

If there is an error message, which says that the Smart Slider calls for a code part that is not defined, then probably you have some missing files, and you should reinstall the Smart Slider. After that go to the Global Settings → Cache, and click on Clear cache, to make your sliders use the correct code.