Problemas desplegando el servidor de forma local

[Losnen]

Estoy intentando ejecutar el servidor localmente, pero tengo algunos problemas con elasticsearch después de la autorización con github.

sale esto en la terminal

17:44:53 web.1 | 2018-01-26 17:44:53 +0000: Rack app error handling request { GET /auth/github/callback } 17:44:53 web.1 | #<Elasticsearch::Transport::Transport::Errors::BadRequest: [400] {"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"No handler for type [string] declared on field [group_title]"}],"type":"mapper_parsing_exception","reason":"Failed to parse mapping [group_assignment_repo]: No handler for type [string] declared on field [group_title]","caused_by":{"type":"mapper_parsing_exception","reason":"No handler for type [string] declared on field [group_title]"}},"status":400}>

y esto en el navegador

Puma caught this error: [400] {"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"No handler for type [string] declared on field [group_title]"}],"type":"mapper_parsing_exception","reason":"Failed to parse mapping [group_assignment_repo]: No handler for type [string] declared on field [group_title]","caused_by":{"type":"mapper_parsing_exception","reason":"No handler for type [string] declared on field [group_title]"}},"status":400} (Elasticsearch::Transport::Transport::Errors::BadRequest)

Can you help me please?