Sudden huge amount 404 from Content scrapper



Guys ,before using blogspot i used self hosting wp blog but so many problem with hosting i decided move it to blogspot

so now im having a new problem,i’ve been using feed burner for my rss feed the problem is all of sudden there huge amount of 404 error (4k pages) originated from content scraper (auto Blog) mostly from .tk and xyz domain ,they steal my content and put canonical back to my blog but with additional slash on url (/)

many say just ignore,it wont caused any trouble but the problem is my blog starting deindex day by days and off course organic traffic decreased …on self hosting blog we by easy setup htaccess and block the ip but blogspot doesn’t offer this feature

any one having this experience?

Many Thanks