There’s a bug in the parser with regards to short descriptions. I’ve just been fixing them manually for now when I run across them.
Regardless of the reason for the error, you get much better results if you ask the plugins team directly instead of posting somewhere else.
We have an email address. plugins @ wordpress.org. You can use that to ask the team with admin access, and they can give you real answers. Asking here is unlikely to get a real answer, unless somebody like me happens to stop by and notice the question.
As for your plugin, I fixed it manually. See how simple it can be when you go to the source?