Hi everyone, it seems that some recent changes to the website have affected the functionality of GUU. Although after a chat I had with the website owner about it, he told me that he will not be supporting third party applications in the future (like GUU) so there is no way for me to know the changes on the backend to update my program to reflect them. As such GUU will not receive any further updates in the future. The source code will continue to be available on GitHub (https://github.com/vancer0/guu-cpp) under the GPL-2.0 license, so if any other developers wish to fork it and update it they are more than welcome to do so.