flutter_downloader Crashed: NSOperationQueue 0x129d86d20 (QOS: UNSPECIFIED)

My app is using firebase crashlytics which provide this issue with a stack trace:

Crashed: NSOperationQueue 0x129d86d20 (QOS: UNSPECIFIED) 0 libdispatch.dylib 0x1861cd8c4 _dispatch_sync_f + 4 1 flutter_downloader 0x101845530 -[FlutterDownloaderPlugin URLSession:downloadTask:didWriteData:totalBytesWritten:totalBytesExpectedToWrite:] + 548 2 CFNetwork 0x189958908 _CFNetworkHTTPConnectionCacheSetLimit + 204440 3 Foundation 0x1869323f0 NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK + 16 4 Foundation 0x18683d710 -[NSBlockOperation main] + 84 5 Foundation 0x18693464c NSOPERATION_IS_INVOKING_MAIN + 20 6 Foundation 0x18683d414 -[NSOperation start] + 740 7 Foundation 0x186935044 NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION + 20 8 Foundation 0x186934b10 __NSOQSchedule_f + 180 9 libdispatch.dylib 0x1861d5c8c _dispatch_block_async_invoke2 + 104 10 libdispatch.dylib 0x186223524 _dispatch_client_callout + 16 11 libdispatch.dylib 0x1861cbe98 _dispatch_continuation_pop$VARIANT$mp + 412 12 libdispatch.dylib 0x1861cb5ec _dispatch_async_redirect_invoke + 656 13 libdispatch.dylib 0x1861d8438 _dispatch_root_queue_drain + 376 14 libdispatch.dylib 0x1861d8bf8 _dispatch_worker_thread2 + 124 15 libsystem_pthread.dylib 0x186274b38 _pthread_wqthread + 212 16 libsystem_pthread.dylib 0x186277740 start_wqthread + 8

I'm using version 1.5.2 and my flutter version is: [✓] Flutter (Channel stable, 1.22.4, on Mac OS X 10.15.1 19B88 darwin-x64, locale en-US) [✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3) [✓] Xcode - develop for iOS and macOS (Xcode 11.3) [✓] Android Studio (version 3.6) [✓] Connected device (2 available) • No issues found!

Any idea?