Archives posts lost

I used the codex manual to help me get an archives page on my blog. Now I have a page that says Archives, but when I click nothing happens. I have my posts set to 10 and now that I have more than 10 posts some posts are gone into files somewhere. I thought that I would be able to access them through the archives, but now they’re gone, and I can’t figure out how to get them to appear in the archives. I am a newbie so can anyone help with step by step instruction as I don’t know coding. I’ve tried, but get nowhere. Thanks to anyone who knows the answer.
Sonni