I'm trying to upload a logo on a customized theme.
After clicking on the preview button, the file doesn't appear and there is an error message: ERR_CERT_AUTHORITY_INVALID
The same happens if I try to upload any images (logo other side, background images and so on).
The size is correct, the file is a .png
I've logged out and in again, but it is the same.
Can anyone help me?
Thank you for