TypeError: Cannot read property 'seq' of undefined

[ghost]

I meet a error:

/root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/connection/base.js:242 throw message; ^ TypeError: Cannot read property 'seq' of undefined at /root/nodePage/node_modules/mongoose-id-autoinc/lib/mongoose-id-autoinc.js:70:39 at /root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/collection/core.js:703:14 at /root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/db.js:1098:5 at /root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/db.js:1806:9 at Server.Base._callHandler (/root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/connection/base.js:442:41) at /root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/connection/server.js:485:18 at MongoReply.parseBody (/root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/responses/mongo_reply.js:68:5) at null. (/root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/connection/server.js:443:20) at EventEmitter.emit (events.js:95:17) at null. (/root/nodePage/node_modules/mongoose/node_modules/mongodb/lib/mongodb/connection/connection_pool.js:191:13)

DEBUG: Program node app exited with code 8

I checked there is the collection "counters" and a document { "_id" : ObjectId("53271980a811715413c98408"), "model" : "customerunikey", "field" : "id", "seq" : 10002, "__v" : 0 }.

how to fix the error, please?