Posted By RichC on January 13, 2017
The “Invalid Server Response – The response to the blogger.getUsersBlogs method received from the blog server was invalid:” error pops up. When trying to decipher what had changed, I recalled that I recently updated WordPress and in the process cleaned out a few post revisions using an older plug-in called Revision Removal. It “has not been tested” with my current WordPress 4.7.1 and figured it “might” be the culprit — and it was. Deactivating this plug-in corrected the problem.
So … if you are having and issue posting to WordPress, first check your plug-ins to be sure they are not the problem … especially older plug-ins that aren’t being updated or maintained.