Here is the output.
Verified chunk 7b8509f86950bcee89e842905f9b9f046d02b0939d41499287e8818c231a4dac (2425/10732), 5.87MB/s 01:56:49 22.6%
Verified chunk 7aa5b84317c97e7bebd20e23a9449daac0fb23225a689bf3184f30c34ebbfc21 (2426/10732), 5.87MB/s 01:56:49 22.6%
Verified chunk 33b24f3b2633a0b0aa8446069ab09bdcb26c3fc482d885b2cc2e04df34344637 (2427/10732), 5.87MB/s 01:56:49 22.6%
Verified chunk 20b660d615aee45ca9e11d6afd16232461bafe1da80d3b8cf886957679dbdf13 (2428/10732), 5.87MB/s 01:56:49 22.6%
Verified chunk eacb19993a99cf27b5f36303328c271966fe38953adef902712235af3bab8812 (2429/10732), 5.87MB/s 01:56:56 22.6%
POST https://content.dropboxapi.com/2/files/download returned 503; retrying after 0.50 seconds
runtime error: invalid memory address or nil pointer dereference
goroutine 67 [running]:
runtime/debug.Stack(0x41, 0x0, 0x0)
/usr/local/go/src/runtime/debug/stack.go:24 +0x9d
runtime/debug.PrintStack()
/usr/local/go/src/runtime/debug/stack.go:16 +0x22
github.com/gilbertchen/duplicacy/src.CatchLogException()
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/src/duplicacy_log.go:233 +0xee
panic(0xedbb20, 0x1af58e0)
/usr/local/go/src/runtime/panic.go:522 +0x1b5
github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox.(*Client).do(0xc000124a40, 0xc000202800, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox/client.go:107 +0x350
github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox.(*Client).download(0xc000124a40, 0x1026842, 0xf, 0xe300e0, 0xc0003253f0, 0x0, 0x0, 0x0, 0xc0000fb990, 0x2, ...)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox/client.go:76 +0x43b
github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox.(*Files).Download(0xc000122038, 0xc0003253f0, 0x5, 0xc0004b6be0, 0x49)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/vendor/github.com/gilbertchen/go-dropbox/files.go:361 +0x82
github.com/gilbertchen/duplicacy/src.(*DropboxStorage).DownloadFile(0xc00049aa10, 0x0, 0xc0004b6be0, 0x49, 0xc000332540, 0x0, 0x0)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/src/duplicacy_dropboxstorage.go:197 +0x11a
github.com/gilbertchen/duplicacy/src.(*ChunkDownloader).Download(0xc000199c30, 0x0, 0x0, 0x980, 0xc001705380, 0x20, 0x0, 0x1, 0x7f04836beb01)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/src/duplicacy_chunkdownloader.go:443 +0x1b0
github.com/gilbertchen/duplicacy/src.CreateChunkDownloader.func1(0xc000199c30, 0x0)
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/src/duplicacy_chunkdownloader.go:87 +0xb7
created by github.com/gilbertchen/duplicacy/src.CreateChunkDownloader
/Users/chgang/zincbox/go/src/github.com/gilbertchen/duplicacy/src/duplicacy_chunkdownloader.go:82 +0x1e6