hello

I add an image field to my database but when I edit and add an image in the database it gives me this error

JFolder::create: Could not create directory
JFolder::create: Could not create directory
Not enough space in your account. Please delete some files.
Disk usage : 19.06Mb
Free space : -9499373b
File size : 59.01Kb
Impossible to upload file : ic_demarrage.png

What can I do to remedy this has ?

This is normal in sandbox.
Use the media manager to delete some files you do not use anymore.

Also, the files are shared through all sandboxes.

he have nothing in the media manager and when i upload file it show me on white page

In the sandbox, open the native Joomla Media Manager.
You should be authorizated to enter in that component.

You will find the physical folders of your user disk.