ValueError: too many values to unpack (expected 2) solution (python 3.7)

import sys
sys.path.append('..')
from optimizer import SGD
from trainer import trainer
import numpy as np
from two_layer_net import TwoLayerNet

max_epoch=4395
batch_size=500
hidden_size=2000
learning_rate = 1.0

x,t=np.genfromtxt(fname="1ghdenn.csv", encoding='UTF-8', dtype=None, delimiter='\t')
model=TwoLayerNet(input_size=4395, hidden_size=hidden_size, output_size=24)
optimizer=SGD(lr=learning_rate)

trainer=Trainer(model, optimizer)
trainer.fit(x,t,max_epoch,batch_size,val_interval=10)
trainer.plot()