I think we should clear things out a little bit. It might help you to diagnose the problem.
I think you are talking about MSE (Meta Stack Exchange), not MSO (Meta Stack Overflow). Why is that? You can't participate in meta if you haven't got at least 5 reputation, so a reputation of 1 doesn't seem to make sense.
That said, your reputation on the governing Meta, MSE, isn't related to your reputation on other sites, including SO or MSO (your reputation on MSO is the same as on SO itself).
If you have participated, there isn't any proof of it we can see as normal users. This can have a number of reasons:
- You posted before the MSO/MSE split. Your post has been migrated to MSO. You have lost your reputation on this site due to that. (That seems unlikely in your case since there aren't any visible posts from you on MSO, or any badges indicating your participation.)
- Your post has been deleted. This can have a number of reasons. If you posted an answer, it might be deleted because of the question being deleted. Or maybe your question or answer was deleted because of the policy here (you posted a link only answer, a low quality question, etc.)
If you still think all these things don't apply to your case, it is best you contact the SE team. Those people has access to moderation tools and even the SE database. You can contact them by clicking the
Contact Us link on the bottom of this page.