What is "wage form 0600000.00."?

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I'm filling out an application for Kroger, and it says "wages must be in wage form 0600000.00.". What does that mean? It won't let me go on without typing it in that form, and I can't even figure out what it is! I've tried what seems to be everything, but nothing I've tried so far has worked.Please give me an answer as soon as possible, I need to know now. I'm filling out the application right now, and my internet gets shut off at 1 am. Please help me, I can't move on in my life withought me getting a job soon!