Node.js cannot write to hbase database

I am now writing an operating system that is written to hbase. The front end is vue.js, and the back end is node.js, database RT, is hbase. At present, my front-end can send data to the back-end to receive, but when writing, I always report an error.

Users/user/Desktop/web/node_modules/hbase/lib/row.js:169
    return args[0].apply(this, [null, cells]);

TypeError: Cannot read property "apply" of undefined

    at client.connection.get (/Users/user/Desktop/web/node_modules/hbase/lib/row.js:169:20)
    at IncomingMessage.res.on (/Users/user/Desktop/web/node_modules/hbase/lib/connection.js:142:16)
    at IncomingMessage.emit (events.js:187:15)
    at endReadableNT (_stream_readable.js:1091:14)
    at process._tickCallback (internal/process/next_tick.js:174:19)

node.js: can write to the database, but will stop the program and report the error above.

router.post("/uploadHbase", function(req, res){
  var form = new formidable.IncomingForm();
  form.parse(req, function (err, fields, files) {

    console.log(fields);//postXXX 
    client.table("test2")
      .create("col_family", function(err, success){
        this
          .row("rowkey1")
          .put("col_family:model_contents", "testContent", function(err, success) {
            this.get(fields.colFamilyPut, function (err, cells) {
              this.exists(function (err, exists) {
                assert.ok(exists);
              });
            });
          });
      });


  });

  res.json({
    status:"0",
    msg:"",
  });


});

this can be run under the same route, and different routes are submitted

router.post("/upload", function(req, res){

  var form = new formidable.IncomingForm();
  form.uploadDir = path.join(__dirname, "/upload");

  form.parse(req, function (err, fields, files) {

    console.log(fields);//postXXX 

    fs.readFile(files.file.path, "utf8", (err, data) => {
    if (err) {
        console.log(err);
      }

      var obj = JSON.parse(data);
     console.log(obj);

      //Put to hbase
      client.table( "test" )
        .create("col_family", function(err, success){
         this
           .row("rowkey")
            .put("col_family:model_contents", JSON.stringify(obj), function(err, success) {
              this.get(fields.colFamilyPut, function (err, cells) {
                this.exists(function (err, exists) {
                  assert.ok(exists);
                  console.log(success);
                });
              });
           });
        });
    });

there is no problem with another post under the same route, and it can be written to the hbase database without knowing why.