I created a header via XHeader software and uploaded it to my computer. The plan was to use it on my WP blog.
When I attempted to install it via upload themes, I got the following message:
Installing Theme from uploaded file: kids educational games.jpg
Unpacking the package…
The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
I do not understand that message and I am truly stuck and do not know what to do.