Database Connector Error: "NO_SELSCREEN" ~ Crystal against Infoset

I'm creating a Crystal Report agaiinst an ECC Infoset and I get the following error when I attempt to run the report:

Database Connector Error: "NO_SELSCREEN"

I've created one report from a different Infoset before this that had so issues. The Infoset that is generating the error has considerably more selection options. Almost all the selections are set to NULL except one that requires a value. The parameter is labeled "Select a group parameter field which has a TRUE value". There are only two options to choose from.

Any ideas? I looked this up on the forum and couldn't find the error message in any threads.