bug?

can not find channel named "sock228"
while executing
"eof $sck"
(procedure "::Socks5::Init" line 87)
invoked from within
"::Socks5::Init $sb $proxy_serv $proxy_port $proxy_authenticate $proxy_user $proxy_password"
(procedure "::ProxyDirect::Snit_methodconnect" line 32)
invoked from within
"::ProxyDirect::Snit_methodconnect ::ProxyDirect ::ProxyDirect::Snit_inst4 ::Proxy::ProxyDirect3 ::Proxy::ProxyDirect3 ::MSN::SB1"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command $args"
invoked from within
"::Proxy::ProxyDirect3 connect ::MSN::SB1"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command $args"
invoked from within
"$proxy connect $name"
(procedure "cmsn_socket" line 13)
invoked from within
"cmsn_socket $sb"
(procedure "cmsn_open_sb" line 38)
invoked from within
"cmsn_open_sb ::MSN::SB1 {XFR 7 SB 207.46.26.139:1863 CKI 1601680251.8588185.19513151}"
("eval" body line 1)
invoked from within
"eval "$cmd""
(procedure "::NS::Snit_methodhandleCommand" line 22)
invoked from within
"::NS::Snit_methodhandleCommand ::NS ::NS::Snit_inst1 ::ns ::ns {XFR 7 SB 207.46.26.139:1863 CKI 1601680251.8588185.19513151}"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command $args"
invoked from within
"$options(-name) handleCommand $command"
(procedure "::Connection::Snit_methodreceivedData" line 44)
invoked from within
"::Connection::Snit_methodreceivedData ::Connection ::Connection::Snit_inst2 ::NS::Connection1 ::NS::Connection1"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command $args"
invoked from within
"::NS::Connection1 receivedData"
("uplevel" body line 1)
invoked from within
"uplevel 1 $command $args"
invoked from within
"ns receivedData"