Can't get to Fanfiction.net. Receiving Error code: sec_error_ocsp_invalid_signing_cert

Can't get to Fanfiction.net. Receiving Error code: sec_error_ocsp_invalid_signing_cert Firefox glitched while I was using Fanfiction.net. After I restarted Firefox I started getting: An error occurred during a connection to www.fanfiction.net. Invalid OCSP signing certificate in OCSP response. (Error code: sec_error_ocsp_invalid_signing_cert) every time I tried visiting the site. I've checked http://www.downforeveryoneorjustme.com and the site works for everyone else. I have tried a suggestion from a similar problem and temporarily disabled strict OCSP checking, it didn't work. I can still get to the site using IE but that is far from an ideal solution. Any help would be greatly apprecaited.