Once I had similar problem when I changed from one server to another. All backups stopped during file compression.
It was because in the new web server (was apache and OS was linux), it was open_basedir restriction in effect and the executables, located on /usr/bin/ could not be executed.
I found the problem after selecting debugging info to list all warnings, and then i did a manual backup.
I hope it helps.
Re: All Backups Fail - An error occurred while copying the zip file to the course directory
by Hermer ROK -
Number of replies: 0