Can't create / edit pages (503 error)

The thing is that it’s been already a week or so when I suddenly have revealed that I can’t add new pages in wordpress and can’t edit the existing ones, neither in the default editor nor in beaver builder. When I click on adding/editing pages, the only thing I can see is simply a white screen and that’s it. When I check the console, there are lots of errors such as ‘Failed to load resource: the server responded with a status of 503’. This errors turn up while css and js files are being loaded. Could you please tell me the reason for this problem? Is that because of plugins incompatibility with beaver builder or the problem is related to hosting?

I’m using the latest versions of wordpress and Astra theme. My hosting is DreamHost. I haven’t installed any new plugins before this problem arose. Besides, all the installed plugins were working smoothly without any conflicts. I have deactivated all plugins, yet it didn’t help. Changing the theme into twenty something didn’t help either.

Please help me to solve this troublesome issue.

Hi, most probably a server issue, you should ask your hosting provider to have a look.