Based on what i tested, it seems like you perform that update not update completely yet which caused some of the css file not exist on your server.
I already help you re-upload the latest launcher installer from your site backend installer page and perform that installation, it seems work fine now, can you give it a check?
Just for your information, I have locked and marked this thread as resolved to avoid confusions in the future. Please start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiries.