Hi Michael!
Thanks for your post and sorry for the trouble!
Ah, I see. Indeed, I had been deleting old tags from the WordPress.org SVN repository, to reduce memory usage and performance costs. I didn’t realize that this would cause such issues.
So, going forward, and as it actually doesn’t seem to be desired by projectdmc.org anymore, I’ll stop removing old tags.
Now, I don’t really want to re-upload 2.1.5 here though, to be honest. Instead, would it be possible for you to consider updating to the latest version 2.1.8? (2.1.6 was skipped due to a build error, and 2.1.7 and 2.1.8 are pretty much just patch releases.)
After that, you’ll not be seeing this problem again.
If you really need 2.1.5, you could also get it from TablePress’ GitHub repo at https://github.com/TablePress/TablePress/releases/tag/2.1.5, in the “Assets” section.
Best wishes,
Tobias