What should I do if it says my control number on my w2 is invalid because its missing some things
Are you referring to a Box D control number on a W-2? A control number is not needed by the IRS. It's used for the employer's or payroll provider's purpose, or sometimes to import.
You could try just leaving it blank. If a blank Box D produces an error, you can try making up a number in the format shown in this FAQ:
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