I've deleted content from my Dropbox account, but I still can't share/sync new files.

Thanks for joining our forum, IFERAOffice​! Welcome. 

When saying that you can’t sync your files on any device, do you mean that you’re adding files to your desktop app and they don’t appear on your Dropbox account online/the Dropbox accounts of your collaborators? 

Is there any chance that you're trying to sync files that are quite large, compared to the amount of available space you've left?

If not, I'd like a screenshot of the current syncing status you see on your desktop app(s), including any error messages you may be getting. 

Keep me posted.

Thank you for your reply.

I confirm that this is an issue affecting both the desktop app and the online version. If I upload a file to a shared folder, I can see that file. The problem is that the people the folder is shared with cannot see it. They do not see the changes I make to files that are already there, and I cannot see theirs. We are talking about Word documents that are a few KB in size or PDFs that, at most, might be a couple of MB — not videos or other large files.

Four months ago, I received a notification that synchronization had been interrupted, but it seems it has never become active again, even if now I have space.

IFERAOffice wrote:

I received a notification that synchronization had been interrupted, but it seems it has never become active again, even if now I have space.

Synchronization in this case refers to the Dropbox application on your computer syncing files to your account online, not between collaborators in a shared folder.

If that process is working now (i.e. add a file to your local Dropbox folder, and you can see it in your account through the Dropbox website), then synchronization is working again.

Can you check that? Add or change a file in the Dropbox folder on your computer, then after a moment sign in to the Dropbox website and see if that file has synced to your account. If it has, then there's a different issue preventing your shared files from updating.

IFERAOffice wrote:

I had run out of storage 5 months ago, and I deleted things. Now I have more than 1GB of free space ...

Post a screenshot of your space usage from your Plan page. It should look like this:

As well as a screenshot of your sync status, that Nancy asked for previously.

Sorry, but my Dropbox is in Italian because I’m Italian. Here are the screenshots.

Sync:

Storage:

As you can see, there is available space and synchronization is working.

However, if my collaborator tries to upload documents using their shared folder, from the IFERAOffice account (not from desktop nor online) I am not able to see what has been uploaded to the shared folder.
As I mentioned above, across all my devices I can only clearly see what I myself have uploaded and modified.

Thanks for the additional info! You mentioned previously that if you add a file to a shared folder, you can see that file; you mean that you can see it only in your local Dropbox folder and not online, right? 

Based on your screenshot, the desktop app on your computer is up to date indeed, so you shouldn’t be having any syncing issues. 

Can you clarify next if the shared folder in question, or any of the files within, contain any of these characters in their name?

I can see it both on my folder and online.

I confirm that none of the indicated characters are present — the shared folder was working perfectly until I received that message saying “your storage is full and we will stop syncing until you upgrade.” Since that moment, it stopped working as a shared folder with third parties.

Hmm, I see. Have your collaborators also made sure that there are no syncing issues on their end? If they’re using the desktop app, does it also show that it’s up to date and can they see their own files/updates on the Dropbox website?

Since your Dropbox app is up to date and you can see your updates on www.dropbox.com, I’m suspecting that this could be an issue on their end instead (which isn’t related to the previous issue you had with your Dropbox account going over-quota).

I will check with them and try to solve this, thanks for your help!

My pleasure! If you need something else later on, don’t hesitate to post again here.