Hey! The images not downloading is well known issue and it stems from imgurs new policy unfortunately. There is a solution for this documented in the plugin docs, basically I recommend hosting the images yourself.
As for the buttons, there's an option in the config file to raise them up to prevent them from overlapping like you have shown in the picture. The config property is called "Protection Tabs Offset", change that value to like 60 or something and it will move the buttons upward.
I hope that answers your questions!