crash in MAC OS w/ 4.1.1.2070

4K Video Downloader 4.1.1.2070 quits unexpectedly in MAC OS 10.10.3 while trying to download 86 videos from a youtube channel (SurvivalReport). I can share the detailed report upon request.

Process: 4kvideodownloader [24626]
Path: /Applications/4K Video Downloader.app/Contents/MacOS/4kvideodownloader
Identifier: com.openmedia.4kvideodownloader
Version: 4.1 (4.1.1)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: 4kvideodownloader [24626]
User ID: 501

Date/Time: 2016-06-18 08:00:30.109 -0400
OS Version: Mac OS X 10.10.3 (14D136)
Report Version: 11
Anonymous UUID: C80F7EA4-C2B3-B7D1-01C4-76E7544271BF

Sleep/Wake UUID: 46126839-F5D9-4018-BB1B-C91974E3C60E

Time Awake Since Boot: 580000 seconds
Time Since Wake: 82000 seconds

Crashed Thread: 18

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:
abort() called
terminating with uncaught exception of type boost::exception_detail::clone_impl: pipe_select_interrupter: Too many open files

Thread 18 Crashed:
0 libsystem_kernel.dylib 0x00007fff87ae9286 __pthread_kill + 10
1 libsystem_c.dylib 0x00007fff8d605b53 abort + 129
2 libc++abi.dylib 0x00007fff901bda21 abort_message + 257
3 libc++abi.dylib 0x00007fff901e59b9 default_terminate_handler() + 243
4 libobjc.A.dylib 0x00007fff8bd287eb _objc_terminate() + 124
5 libc++abi.dylib 0x00007fff901e30a1 std::__terminate(void (*)()) + 8
6 libc++abi.dylib 0x00007fff901e2b30 __cxa_throw + 121
7 com.openmedia.4kvideodownloader 0x000000010986e2e6 void boost::throw_exception(boost::system::system_error const&) + 198
8 com.openmedia.4kvideodownloader 0x000000010986e1fd boost::asio::detail::do_throw_error(boost::system::error_code const&, char const*) + 93
9 com.openmedia.4kvideodownloader 0x0000000109ba6675 boost::asio::detail::kqueue_reactor::kqueue_reactor(boost::asio::io_service&) + 245
10 com.openmedia.4kvideodownloader 0x0000000109ba6562 boost::asio::io_service::service* boost::asio::detail::service_registry::create(boost::asio::io_service&) + 34
11 com.openmedia.4kvideodownloader 0x0000000109ba580a boost::asio::detail::service_registry::do_use_service(boost::asio: