WP Google Maps Pro

I have had WP Google Maps Pro for sometime but now I am haing a problem with my API.
I get a message saying - API keys with referer restrictions cannot be used with this API.
Anyone know how to sort this so I can continue using,

Hi @johnfurness,

I would like to recommend please contact Item Author to get item support How to Contact your purchased Item Author and let them know. Item author will be happy to assist you.

Thanks

Ok Thank you I was hoping I wouldn’t need to pay for support

you can ask support through item commnets. Also from item support page. If you purchased the item less than 6 month ago then you can get support free. if expired then it depends on author will support you free or not. but I think author will assist you for your technical query. Thanks

Ok Thanks a lot for that really helpful