How to Turn Your Minecraft Pets Visible?

Well, I was playing on minecraft and i did a code where i can turn invisible for 1000000 SECONDS. Something messed up and my dogs turned invisible. Its been like that for about A WEEK and i know 1000000
sec. Doesnt = a week:( I NEEEEEDDDDD to find a way of getting them back besides killing them:(

Please Please Please Please PPPPPLLLLEEEEAAASSSSEEEEE Help

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