Can't backup in asterisk GUI

I use asterisk 1.8.24 and asterisk-gui 2.0.4, everything is ok but I can’t run backup function. as you see the picture when I click backup button nothing happens, the popup still show. appreciated for any help.

You need to get support from the people who supplied Asterisk GUI, as it is an end of life product, and the current GUI of choice is FreePBX. Note that FreePBX is not supported on this board.

Thank david55, I fix it.

It was said that asterisk GUI was not in use and was removed. whats the reason. can anyone help…