Why can't I click into Registration Information fields?

Question

Problems

1. When I try to Send/Receive, I get an error I don't understand. 

JSON-RPC Request error (-32601): 'command:paratextBibleSendReceive.sendReceiveProjects' not found

2. When I try to adjust Paratext Registration Information, I'm unable to click into any of the fields. 

Notice that my cursor changes gets a "prohibited" symbol.

Question

Why might this happen, and what can I do about it?

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Version: 0.3.0-alpha.0+github.20250609022049.15525285480