I’ve seen posts and received DMs regarding connection issues between Kukai and objkt. While it's being investigated, could you please try the steps below?
Having trouble connecting to Objkt and other dApps through the Kukai wallet? Hopefully, this mini thread can help:
The Issue lies with Beacon, which facilitates the connection. Devs are aware of the problem. However, there is no official ETA for when it will be resolved.