It sounds like the table prefix might not have been properly updated during your Magento upgrade. You can check your env.php file to confirm whether the database table prefix (if any) is correctly defined. If Magento is trying to query core_config_data without the prefix, it’s likely missing or mismatched after the upgrade. Also, make sure to run the following commands after fixing your prefix settings: php bin/magento setup:upgrade php bin/magento setup:di:compile php bin/magento setup:static-content:deploy -f php bin/magento cache:flush This should restore your frontend layout and fix the missing configuration data issue. If you’d like a step-by-step guide on resolving similar Magento upgrade issues, click here for detailed troubleshooting assistance and examples.
