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Please verify that the URL https://jump-to.link/jump/to?url=https%3A%2F%2Fwww.telefonabc.at%2Fredirect.aspx%3Furl%3Dhttps%3A%2F%2Fmyanimelist.net%2Fprofile%2Fdewapkrgglive works first in your browser and that the feed passes a validator test.