I’m not a developer by any means… just someone who likes the plugin, and really wanted to keep using it. So, I did a good amount of troubleshooting. The good news… I think I have found a fix.
This all has to do (I think) with pretty permalinks and the plugin settings after updating any of the plugin settings/parameters in the latest version.
Here are the steps I took to get things back to normal:
Step 1. Revert to default settings. You should notice immediately that your site is back up and running, but if you had any changes to the tokens they are all reverted. Those are easily changed again. The tricky part is in step 2.
Step 2. In the plugin settings, tweak the “Series Custom Base” to the correct path of your series posts… so something like ” /subdirectory/series “… If you are like me, I had always left that Series Custom Base field blank. I then upgraded to the latest version of the plugin (a few weeks ago). So, just today when I made a change to one of the meta fields in the plugin settings and clicked “Update Options” I immediately noticed the Series Custom Base then had a trailing slash “/” in the field – this is when all heck broke loose, and my site no longer delivered my content properly.
Step 3. Send me a message and I might be able to walk you through it a little more.
Good luck,
Ethan (aka Bentforkz)