Recently we have been experiencing issues when trying to access pages on the back end, the page just doesn't load.
We have tried multiple browsers (IE, Chrome, Firefox, Safari) and this had made no difference. This issue has only started happening in the last couple of days.
I'm relatively new to working with websites and this is the first major issues I've encountered.
Best Answer
There are many cases which can result in same issue
First delete follow folders in Magento root:
If you are in development stage then turn on developer mode by applying below mentioned command from Magento CLI:
If you are in production mode then run below command in terminal:
Lastly, refresh admin/backend and frontend page