java.lang.IllegalStateException: Key cannot contain whitespace

Hello

I'm developing a new connected system. For that i built java code and deployed the JAR on Appian server and jar deployed successfully. Now, i'm able to see new connected system and am able to create a connected system and i tested the connection and it was successful. 

But when i try to create a new integration, i'm getting an error. Please find the error below. 

On UI

HTTP Code: 500 APNX-1-4198-000 Error Evaluating UI Expression Expression evaluation error [evaluation ID = ZTB1XT47] : [valid:false,syntaxError:false,value:Expression evaluation error: An error occurred while executing a save: Expression evaluation error at function fn!objectReadAction_appian_internal [line 4]: com.appiancorp.connectedsystems.templateframework.functions.pipeline.proxyDecoratorPipeline.TemplateInvocationException: Contact the developer of this template to resolve the following issue. java.lang.IllegalStateException: Key cannot contain whitespace]

Server Logs

com.appiancorp.exceptions.LocalizedAppianRuntimeException$LocalizedAppianException: Expression evaluation error [evaluation ID = ZTB1XT47] : [valid:false,syntaxError:false,value:Expression evaluation error: An error occurred while executing a save: Expression evaluation error at function fn!objectReadAction_appian_internal [line 4]: com.appiancorp.connectedsystems.templateframework.functions.pipeline.proxyDecoratorPipeline.TemplateInvocationException: Contact the developer of this template to resolve the following issue. java.lang.IllegalStateException: Key cannot contain whitespace] (APNX-1-4198-000)

I

and i'm not sure what did i miss. I'm passing the connected system configuration to integration but other than that i'm not passing any key. 

Could you please help me in resolving this issue.

Thanks

Rahul Gundu

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