If the elements of your template (text, images) do not show up in WordPress to be configured, please open the editor for this template (Tools > Placid Social Images > Templates > Edit Template) and check for the following settings:
Check the Dynamic Element Setting
Click on the Pencil-Icon to edit the layer of an element you want to configure in WordPress. Make sure the checkbox for Dynamic Element is active. You will see a dot beside the layer name after activating this option.
Repeat for all layers you want to let WordPress fill with text or images automatically.