Bad gateway / missing posts?

[sawyer]

I've been getting the 502 bad gateway error every time I tried to access the site this last week and now my posts have disappeared?
What's going on? Is there any way to get them back, because I made quite a big thread about my experience with surgery.
Cheers

[hammer]

It appears to be fixed, as I'm seeing the old posts are back!

[terre]

My messages seem to not come back, and multiple posts have been deleted lately for me :/

[Paa_Paw]

I had the same problem, then It worked and then the problem came back. Now again it is working normally. 

I do not have a clue what the problem might be.