It all started when i was not able to install modules on my site due to cron job not running. But due to permission errors and all, and after following some steps shown in devdocs magento. My site and backend crashed. I suspect it is due to changing deploy mode to production. Now im not able to change my mode( not permitted) and my back and frontend look like this
Unable to install Modules Magento 2.2 ( Readiness Check Error)
my follow up post
bin/magento setup:static-content:deploy
command.