(Please start new threads for new issues — the thread you posted to wasn't in any way related to your question. I've moved this to a new thread.)
Everything is still being saved on your computer. That message is about file syncing. Read through the Sync page to understand that message and post again here if you have a more specific question.
Zotero could not add more references,
A getting this
*You have reached your Zotero File Storage quota. Some files were not uploaded. Other Zotero data will continue to sync to the server.
See your zotero.org account settings for additional storage options.*
Someone help me please
Everything is still being saved on your computer. That message is about file syncing. Read through the Sync page to understand that message and post again here if you have a more specific question.