Hello Elvira K. Thank you for replying. I think I need to work harder on getting the plugin to work. I have made some progress which may suggest the 3 points as advised by the plugin notification, may not be an issue. I will mark as resolved for now and continue to try and figure things out.
Thanks devboudiguk. The downgrade is probably the easiest option as it was working ok for me too. Thanks alsssandorcossidente also as that is a good work around.
It would be great to have a category option which will then allow users easily be directed to only those opportunities they are interested in via a shortcode.