Your Zotero folder would only vanish if you deleted it — e.g., by using some disk cleaning tool. See Locating Missing Zotero Data and provide the info requested there.

I am having the same problem as cdbrauns and it is as he describes for me too. I have reached my limit and have been cleaning up my library. I am using Zotero stand alone. I have deleted items from

If I synch all the standalone libraries and the online library my understanding is that all the folders and files will be merged together hence bringing the number up again to around 1000 which I don'

I spent many hours cleaning up and resorting the zotero folders and biblio entries on computer 1. However the zotero library between computer 1 and computer 2 and the zotero online were not synched up

@damnation Do you think you could take a look at cleaning it up a bit?

I already have thousands of files named this way, since this is how I started doing it 20-odd years ago with ProCite. Each new addition gets the BBT-citekey treatment (much faster than manually). Than

Hmm, yes. I'm just going through (and cleaning up for Zotero) my thousands of refs imported from EndNote and noticed that there is no Date field for podcast (I have around a half-dozen of these). I pu

I don't run any cleaning tools and only Window's built-in security, and obviously I never muck around manually in the data folder, so I'm fairly certain this never existed. Happy to send the upgrade l

think you'll find folks interested in metadata cleaning jobs here.

So far I have tried cleaning out html tags in the local library, and syncing to a new OSX account, but it still times out.

This one was generated after cleaning up some of the libraries that were putting noise into the error report.

Yes, you did. If your database is large enough, the built-in macOS storage tool (and third-party disk-cleaning tools) would list it as a large file, but you should never delete files without knowing w

I hadn't opened Zotero for a few months on the old computer and I did use a disk-cleaning tool to free up some space. So, it wouldn't surprise me if I deleted the .sqlite file.

9.2.0.0014 on MacPS) into Zotero note. When cleaning the import (remove surplus linespaces), Zotero crashes after a few operations.

When's the last time you actually used Zotero on the other computer? Migration Assistant should've copied your files exactly as they were. If you recently used some sort of disk-cleaning tool — includ

If so, the thing we've seen the most is that people ran disk-cleaning software — either built in to the system or some third-party tool — to free up space and let it delete the large Zotero .sqlite an

but it could be some sort of overzealous disk-cleaning tool, if you've used anything like that recently. The web version is thankfully pretty up to date, but I don't have any backups on my computer,

However, I didn't use any system-cleaning software and I still do not know what happened and why it didn't work one day. (I had some space problems on my hardisk and I couldn't use Safari properly but

Again, though, I really wish you would comment clearly on whether you use any sort of utility or system-cleaning software. If there's some popular software that does this, we'd want to know so that we

as to whether you ran some utility/system-cleaning software in the last few days, but that's the most likely culprit.