Hi, I have tried all available options on the internet to optimize space on Zotero, including purchasing extra space. It's not working for me. Please help. Seeking solutions for Zotero Mac
You'd have to say what the problem is you're running into more precisely and what you've tried. You can buy unlimited storage and you would not run out of storage in that case, so it sounds like something else is going on, but I'm unclear what.
Upgrade Storage
https://www.zotero.org/settings/storage
If not, and file syncing is not working for you, see https://www.zotero.org/support/kb/files_not_syncing