SLS Variable Issues?

I can’t even removed my stack
please help

I don’t understand this error

An error occurred: BlendedDashcallDashsummariesLambdaFunction - Resource handler returned message: "1 validation error detected: Value at 'environment.variables' failed to satisfy constraint: Map keys must satisfy constraint: [Member must satisfy regular expression pattern: [a-zA-Z]([a-zA-Z0-9_])+] (Service: Lambda, Status Code: 400, Request ID: 5890ac73-787f-4e37-89c8-7711f5833435)" (RequestToken: db24bfa2-dfe1-c791-e9bc-13b5a6c844a9, HandlerErrorCode: InvalidRequest).

nevermind found the error

it was - in the env