Admin panel dissapears after install

I was editing language due to website being not English and translation plugins not accurate. I know witch parts to change and all yet after damaging a file too much I had to delete the plugin and reinstall it ( re-download ) again. After that if I activate the plugin, WP admin panel completely disappears and instantly you get redirected into profile page, even when ever you try to access admin panel it redirects into profile page.

The page I need help with: [log in to see the link]

 

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