Modern Metals ores don't spawn, but Base Metals do.

Upload game logs to a site like pastebin, then link them here, we can't help with no information.

Other questions we also need answers to:

1. What minecraft launcher are you using?
2. What site did you download our mods from?

As you've not responded, we can only assume that you're either a pirate user, or that you used a repost site, in either case, we don't provide support for that, so as tests demonstrate that your issue doesn't occur in official builds, your issue will be closed.