my blog is in danger

Hi,

My blog logicalmoviereviews.com is in danger. Every time i want to a new post or edit a post the server throws an internal server error. I have over 2k posts on my blog.

I use godaddy VPS server so there is no issue with the bandwidth. I have other websites on the same server and they are not hosted using wordpress and they all work fine.

The database if perfectly fine. Even the website works fine. Only the dashboard that is causing the isssue. I disabled all the plugins and tried still the same issue.

Can anyone suggest me what should i do next? Will installing the wordpress core again solve my issue without loosing the data?

Thanks in advance.