My WordPress site was working fine until yesterday. But today when I woke up and tried to access the wp-admin area of my website, it is just showing a blank screen. Is there any way I can fix this? Please help me.
What is the exact problem? Could you clarify it?
The problem is unknown. All I can see is a blank grey screen with nothing in it. I tried to contact the hosting provider, but they are not replying. So, please help me. 
Don’t worry, it looks like a WordPress installation issue. Recently, did you install any new plugins or themes? or made any changes to the files or WordPress?
No, I haven’t the last time I installed a plugin was around 3 months ago and I didn’t make any changes.
Ok. In that case, try reinstalling your WordPress. I recommend to take a backup before reinstalling.
Ok. I will reinstall the WordPress. Could you provide me any trusted guides to do that without any problems?
Reinstalling the WordPress fixed the issue. Thanks for your help.