Fatal error: Uncaught Error: Class "Drupal\Core\Block\BlockBase" not found in /home/fnbrshareacopy/public_html/modules/contrib/facets_block/src/Plugin/Block/FacetsBlock.php:27 Stack trace: #0 {main} thrown in /home/fnbrshareacopy/public_html/modules/contrib/facets_block/src/Plugin/Block/FacetsBlock.php on line 27