Hi, I am new in Magento. I install Magento 2 in Bluehost and I got an error says "One or more indexes are invalid. Make sure your Magento cron job is running. " Hope someone can help me to fix this thanks in advance.
That menas you'll need to configure the cronjobs in order to allow Magento to work properly.
Take a look at this document: http://devdocs.magento.com/guides/v2.2/config-guide/cli/config-cli-subcommands-cron.html
For get rid of this warning you just need to login your system with SSH,
Just go to magento file root path,
php bin/magento indexer:reindex php bin/magento cache:flush
Now check your adminpanel your issue will resolved.
If issue solved click kudos/accept as solutions.