You need to delete the FOLDER that is in the same folder as your LR catalog, but with a name beginning with the same name as your catalog but then including a suffix of Previews.lrdata.\
Please let us know if it helps.
that got it open, there were 32,000 files, (a lot more than i expected) should i just dump them. they went to the recycle file.
Yes you can delete them.
i have another question about up dates, can you deal with that too?
May I know what is the issue?
I have 5.7, and i was told that i should up date to 6.0. i havent found out how to do that, i have looked a couple of times, and when i thought i found a way it hung up
Lightroom 6.0 is altogether a different version.
You need to buy licence for it if you do not have Lightroom subscription.