Help! My Translated Page got Unindexed by Google

Hi BHW,

A few days ago, i tried to install woocommerce on my wordpress. Before installing, I have two language on my wordpress (Indonesian and English - Indonesian as the default) which I made using Polylang.

I rank on number 1 on certain keyword.

But 3 days after installing woocommerce, I noticed my Google Analytics showing anomaly drop on my english translated page.

Now I tried to search all the keywords that I rank high on Google for the English keyword, they are all gone.

Can anyone help me suggest what I should do?

Thank you

resubmit sitemaps, log into GWMT and use test/index your live url.