I Can't Reply in the Topic I started called Slider Excerpt border/box

Thats a browser/caching issue. Just hit your reload button on your browser and it will clear the browser cache. Make sure and visit the link you’re unable to reply to and click your reload button.

Also make sure that you’re not trying to reply on a closed thread. It should say it at the top whether its open or closed. Once a thread/post has been resolved it gets closed to prevent other users from replying on threads that are already resolved. Users are supposed to start new threads instead of replying on others threads, this keeps everything separate and organized, which makes it easier to search the forum for topics – https://appfinite.com/topic/forum-rules/

Ah, my mistake, I forgot that regular users/customers won’t be able to see the open/closed link on threads…only the moderators will be able to see it. One way you can check is if the form to reply is disabled. Or if the link to the thread itself is a darker color. If it’s a dark gray, that means it’s closed, if it’s still blue then that means it’s still open. The link colors can only be soon from the forum page that shows all posts (but not the post itself). I hope I didn’t make that sound confusing, that’s just the way bbPress works (the plugin that appfinite uses for their forums).