multi quote is not working

on my forum multi quote is not working
when we select diff post by clicking on multi quote button and then click on quote to add our ans then only last post we have selected opens ,remaining posts did not open
why ? tell me how to correct it thanks

Hi, have you tried clicking on the 'Post Reply' button instead of the 'Quote' button and see if it works? Select all your multi-quotes and then click the 'Post Reply' button. I can confirm that it's working here.

but there is no post reply button
where it is?

You know, the post the reply button at the bottom or top of every topic. The ones on this forum look like this:

thanks problem solved