after upgrade 6.01 to 6.02 files backup not working.

[-=Mike=-]

After update from 6.02 to 6.04 problem stil exists no working "files backup", after pressing backup stil shows a blank page on this url     .com/admin.php?_g=maintenance&node=index&files_backup=1#backup

Tried with different browsers.

 

 

After i upgrade the shop from 6.01 to 6.02 without any errors, the files backup isnt working.

When i start the files backup it takes a moment then a blank page is al there is, url in the browser is then:  admin.php?_g=maintenance&node=index&files_backup=1#backup

There is nothing in a error log.

Database backup works.

 

Any one any idea?

Edited April 30, 2015 by -=Mike=-