[GraphQL Error] query searchIssues

General Discussion
1

I accidentally recreated the workspace and the following error occurs

graphql: Cannot return null for non-nullable field EstimationVote.voter

query searchIssues(
  $after: String,
  $workspaceId: ID!,
  $filters: EpicAssignableIssueSearchFiltersInput!){
  searchIssues(
    after: $after,
    workspaceId: $workspaceId, 
    filters: $filters ) {
    nodes {
      id
      title
      ghId
      ghNodeId
      closedAt
      createdAt
      updatedAt
      assignees {
        nodes {
          login
          name
          zenhubUser {
            email
            name
          }
        }
      }
      pipelineIssue(workspaceId: $workspaceId) {
        pipeline {
          id
          name
        }
      }
      estimate {
        value
      }
      estimationVotes{
        nodes {
          voter {
            githubUser {
              login
            }
          }
          value
        }
      }
      epic {
        id
        issue {
          id
          title
        }
      }
      repository {
        ghId
        ghNodeId
      }
      ghCreatedAt
      ghUpdatedAt
      htmlUrl
      number
    }
		pageInfo{
			startCursor
      endCursor
      hasNextPage
    }
    totalCount
  }
}