Big problems after installing

Hi,

I’ve installed the plugin today. After that the webpage stopped working, only the home page is visible and it is loading some strange link …/wp-content/uploads/spacker-cache

I’ve deleted the plugin after that fully restored the page and the database from a backup, but there is no change.

Please help.
The link is https://triostyle.bg

https://www.ads-software.com/plugins/js-css-script-optimizer/