I have recently taken on the website and plugins. Unfortunately, they had previously been neglected to the point some are very old or have some bugs, so I am currently going through and updating the plugins one-by-one.
If you do have any problems with any plugins, please leave a post at the plugin’s WordPress page or a comment on the relevant post in the blog. Try to leave as much details as possible (rather than “it doesn’t work”), such as version of WordPress, what does/doesn’t happen, any error messages, at what point the error occurs, etc. I will respond as soon as possible.