Facebook Debugger

I’ve been unable to share my posts on Facebook for about 2 or 3 weeks now. Here is one debugger result for a recent post:

Scrape Information
Response Code: 302
Fetched URL: https://blog.stompandcrush.com/archives/4914
Canonical URL: https://blog.stompandcrush.com/archives/4914
Final URL: https://blog.stompandcrush.com/PMpmZ/archives/4914
Critical Errors That Must Be Fixed
Could Not Follow Redirect: URL requested a HTTP redirect, but it could not be followed.
Open Graph Warnings That Should Be Fixed
Inferred Property: The ‘og:url’ property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property: The ‘og:title’ property should be explicitly provided, even if a value can be inferred from other tags.
Object Properties
og:url: https://blog.stompandcrush.com/archives/4914
og:type: website
og:title: https://blog.stompandcrush.com/archives/4914
og:updated_time: 1379958825
Redirect Path
original: https://blog.stompandcrush.com/archives/4914
302: https://blog.stompandcrush.com/PMpmZ/archives/4914

After clicking the Debug button a 2nd time, I get the following:

Scrape Information
Response Code: 503
Fetched URL: https://blog.stompandcrush.com/archives/4914
Canonical URL: https://blog.stompandcrush.com/archives/4914
Final URL: https://blog.stompandcrush.com/PhmaZ/archives/4914
Critical Errors That Must Be Fixed
Bad Response Code: URL returned a bad HTTP response code.
Open Graph Warnings That Should Be Fixed
Inferred Property: The ‘og:url’ property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property: The ‘og:title’ property should be explicitly provided, even if a value can be inferred from other tags.
Object Properties
og:url: https://blog.stompandcrush.com/archives/4914
og:type: website
og:title: https://blog.stompandcrush.com/archives/4914
og:updated_time: 1379959080
Redirect Path
original: https://blog.stompandcrush.com/archives/4914
302: https://blog.stompandcrush.com/PhmaZ/archives/4914
Final URL is in bold (this is the URL we tried to extract metadata from).

A 3rd attempt returns the 302 error. I have 3 sites on WordPress and all have been affected by whatever is causing the problem. Those sites are:

https://blog.stompandcrush.com/
https://graffiti.stompandcrush.com/
thesunsetkid.stompandcrush.com/

Any feedback would be greatly appreciated. Thanks!