Не удается создать резервное копирование через SFTP
Создаю соединение через SFTP с авторизацией по ключу и по паролю, результат один. Подключаюсь к OpenSSH на Windows 2012 R2
Получаю сообщение: Во время выполнения запроса произошла ошибка

Через консоль scp работает нормально, файл загружается. Попробовал на двух различных серверах.

Подскажите что искать?

ISPmanager Lite 5.237.0-2020.02.10_13:03
Ubuntu 16.04.6 (x86_64)

ispmgr.log
Код:
Feb 26 20:08:05 [769:307] proc EXTINFO Run 'scp -q -o StrictHostKeyChecking=no -i tmp/tmpfile.TUrsQM -P 2222 tmp/check#.KQvVkC username@185.84.236.18:check#.KQvVkC' pid 3444
Feb 26 20:08:06 [769:2] libmgr EXTINFO Start thread 
Feb 26 20:08:06 [769:308] rpc EXT Set default language to 'ru'
Feb 26 20:08:06 [769:308] core_module EXTINFO Internal [][] 'func=authenticate.system&username=root'
Feb 26 20:08:06 [769:308] core_module INFO Request [92.82.52.127][root] 'elid=yes%5Fform1582747683605&func=progress.get&operafake=1582747686682&sfrom=ajax'
Feb 26 20:08:06 [769:308] libmgr EXTINFO Thread b0a4d4cc04d8a1c2 finished
Feb 26 20:08:06 [769:307] proc EXTINFO Process 3444 finished with status 1
Feb 26 20:08:06 [769:307] backtrace EXTINFO mgr_err::Error::Error(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (lib/libmgr.so.5.237.0 + 0x104) [*0x7f2bebd274f8]
Feb 26 20:08:06 [769:307] backtrace EXTINFO backup2::SftpStorage::Scp(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (lib/libbackup2.so + 0x3d8) [*0x7f2bebd2772d]
Feb 26 20:08:06 [769:307] backtrace EXTINFO backup2::SftpStorage::Put(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (lib/libbackup2.so + 0x11d) [*0x7f2bec78c9b9]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ??? (lib/ispmgr.so + 0x0) [*0x7f2bec7978fb]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ??? (lib/ispmgr.so + 0x0) [*0x7f2bea7c7b93]
Feb 26 20:08:06 [769:307] backtrace EXTINFO isp_api::FormAction::New(isp_api::Session&) const (lib/libispapi.so.5.237.0 + 0x65) [*0x7f2bea7c7977]
Feb 26 20:08:06 [769:307] backtrace EXTINFO isp_api::FormAction::ModuleExecute(isp_api::Session&) const (lib/libispapi.so.5.237.0 + 0xed) [*0x7f2bea7c7778]
Feb 26 20:08:06 [769:307] backtrace EXTINFO isp_api::FormAction::Execute(isp_api::Session&) const (lib/libispapi.so.5.237.0 + 0x284) [*0x7f2bea7c643d]
Feb 26 20:08:06 [769:307] backtrace EXTINFO isp_api::Action::Run(isp_api::Session&) const (lib/libispapi.so.5.237.0 + 0xe7) [*0x7f2bea7cbdab]
Feb 26 20:08:06 [769:307] backtrace EXTINFO isp_api::InternalCall(isp_api::BaseConnection const&, isp_api::Authen const&, isp_api::Action const&) (lib/libispapi.so.5.237.0 + 0x962) [*0x7f2beb7b61de]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ispcore::ProcessRequest::ProcessApi1() (lib/libbase.so.5.237.0 + 0x510) [*0x7f2beb7b38b5]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ispcore::ProcessRequest::operator()() (lib/libbase.so.5.237.0 + 0x2c1) [*0x7f2beb7bf52b]
Feb 26 20:08:06 [769:307] backtrace EXTINFO mgr_thread::List::Impl<ispcore::ProcessRequest>::operator()() (lib/libbase.so.5.237.0 + 0x8d) [*0x7f2beb7bf486]
Feb 26 20:08:06 [769:307] backtrace EXTINFO mgr_thread::Handle::Impl<mgr_thread::List::Impl<ispcore::ProcessRequest> >::run() (lib/libbase.so.5.237.0 + 0x1c) [*0x7f2bea29d202]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ??? (lib/libmgr.so.5.237.0 + 0x0) [*0x7f2bed09b6ba]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ??? (/lib/x86_64-linux-gnu/libpthread.so.0 + 0x0) [*0x7f2becdd141d]
Feb 26 20:08:06 [769:307] backtrace EXTINFO ??? (/lib/x86_64-linux-gnu/libc.so.6 + 0x6d) [*(nil)]
Feb 26 20:08:06 [769:307] libmgr ERROR Error: Type: 'scp failed'
Feb 26 20:08:06 [769:307] action EXTINFO Get message for error in action 'backup2.settings' for level 30
Feb 26 20:08:06 [769:307] action EXTINFO Get message for error in action 'mgrerror_scp failed' for level 30
Feb 26 20:08:06 [769:307] action EXTINFO Get message for error in action 'msgerror' for level 30
Feb 26 20:08:06 [769:307] core WARNING 0x7f2bb0000900 Restart request
Feb 26 20:08:06 [769:307] libmgr EXTINFO Start thread 
Feb 26 20:08:06 [769:307] libmgr EXTINFO Thread b27f74cf6f766dbb finished
Feb 26 20:08:06 [769:309] core_module EXTINFO Internal [][] 'func=authenticate.system&username=root'
Feb 26 20:08:06 [769:309] core_module INFO Request [92.82.52.127][root] 'admname=username&arch_password=&auth_type=bykey&bucket_amazon=&bucket_name=&clicked_button=ok&code_dropbox=&code_googledrive=&code_yandex=&daily_count=1&enabled=on&exclude_db=&exclude_files=data%2Flogs%2F%2A.log%0D%0Adata%2Fmod%2Dtmp%0D%0Adata%2Fbin%2Dtmp&fmasterkey=KEYVALUE&full_count=3&func=backup2.settings&id_amazon=&mode_ftp=&operafake=1582747685681&passwd=*&password=*&path_dropbox=&path_ftp=&path_googledrive=&path_local=&path_sftp=&path_yandex=&port_ftp=&port_ssh=2222&progressid=yes%5Fform1582747683605&secret_amazon=&sfrom=ajax&show_wbucket=&show_wsize_limit=&size_limit=&storage_type=stype%5Fsftp&url=&url_sftp=185.84.236.18&username='
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'enabled' with param value 'on'
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'arch_password' with param value ''
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'size_limit' with param value ''
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'full_count' with param value '3'
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'daily_count' with param value '1'
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'exclude_files' with param value 'data/logs/*.log
data/mod-tmp
data/bin-tmp'
Feb 26 20:08:06 [769:309] core_decoration EXTINFO Replace form value 'exclude_db' with param value ''
Feb 26 20:08:06 [769:309] core_decoration WARNING Value '' for 'bucket_amazon' select is missed in slist and will be ignored
Feb 26 20:08:06 [769:309] libmgr EXTINFO Thread 49f7357cd3108972 finished
Feb 26 20:08:07 [769:2] libmgr EXTINFO Start thread 
Feb 26 20:08:07 [769:310] rpc EXT Set default language to 'ru'
Feb 26 20:08:07 [769:310] core_module EXTINFO Internal [][] 'func=authenticate.system&username=root'
Feb 26 20:08:07 [769:310] core_module INFO Request [92.82.52.127][root] 'elid=yes%5Fform1582747683605&func=progress.get&operafake=1582747687721&sfrom=ajax'
Feb 26 20:08:07 [769:310] libmgr EXTINFO Thread f3e512e2d85ced71 finished