Google Drive Troubleshooting
2. Buy More Storage
You may be presented with a message that reads “More Google storage is needed“, while you’re performing an upload.
To purchase more storage, log in to your Drive account and click on Upgrade storage in the bottom left.
You will be presented with a number of options. Select the one most appropriate for your needs and follow the on-screen instructions. Prices vary from $1.99 per month to $299.99 per month.
Alternatively, you can try to free up storage, for example by deleting emails with large attachments in Gmail.