This is not a bug. This is a simple network issue. When you went to post this, you probably had a network issue that caused your page to not load, and that's why you double-clicked there and posted twice.
The duplicate posts were not created by EarnOnVictor, but someone else.
Can't you just delete one of the posts? It's not like it is a thread where the thread creator does not have the capability of deleting it.
The
topicthread in which the duplicate posts were made on was not self-moderated and any post created on that can be deleted only by the poster and moderators.
The poster has already deleted the extra post.