panic: cannot read "../../sampledata_en/20200527/13/6694993429081179515.html"

goroutine 6337 [running]:
_/home/ec2-user/environment/cluster2/cluster2/newsDetect.CategoriesCommand.func1.1(0xc000028090, 0xc000020030, 0xc000020060, 0xc0013fcfc0, 0x5b)
	/home/ec2-user/environment/cluster2/cluster2/newsDetect/newsCommand.go:171 +0xb46
created by _/home/ec2-user/environment/cluster2/cluster2/newsDetect.CategoriesCommand.func1
	/home/ec2-user/environment/cluster2/cluster2/newsDetect/newsCommand.go:165 +0x18a