panic: cannot read "../../sampledata/20200529/05/4139423686754883229.html"

goroutine 17862 [running]:
_/home/ec2-user/environment/cluster2/cluster2/languagesDetect.LanguagesCommand.func1.1(0xc0000b1bf0, 0xc0001e93b0, 0xc0001e93e0, 0xc000aa1020, 0x58)
	/home/ec2-user/environment/cluster2/cluster2/languagesDetect/languagesCommand.go:62 +0x8b8
created by _/home/ec2-user/environment/cluster2/cluster2/languagesDetect.LanguagesCommand.func1
	/home/ec2-user/environment/cluster2/cluster2/languagesDetect/languagesCommand.go:56 +0x18a