After install doiInSummary plugin, error happened in my homepage

Yesterday, I were seraching the internet to find some plugin useful for my journal, I find this one

doiInSummary-2015-11-12.tar.gz

here: DOI on Table of content page - #10 by abadan
TIM%E6%88%AA%E5%9B%BE20180911102610

after download and install it in my journal, bad thing happened.

before I installed this plugin, it was look like this:
911103006

but after install it, it changed to a sad look, nothing show below the tag
911103221

I’ve tried to delete the plugin from the Setup, but it won;t work. Urgently want to know how to solve this knotty problem.

Thank a lot.