Hi - I am running Arachni on a VM with 4086 MB - I am trying to execute a local scan on an internal bWAPP server and I am getting the following error:

[Arachni::RPC::Exceptions::ConnectionError] Connection closed [Connection refused - connect(2) for 127.0.0.1:7819]

/root/Desktop/arachni-1.5.1-0.5.12/system/arachni-ui-web/app/models/scan.rb:528:in block in refresh' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-rpc-0.2.1.4/lib/arachni/rpc/proxy.rb:58:incall' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-rpc-0.2.1.4/lib/arachni/rpc/proxy.rb:58:in block (2 levels) in translate' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-rpc-0.2.1.4/lib/arachni/rpc/client/handler.rb:100:incall' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-rpc-0.2.1.4/lib/arachni/rpc/client/handler.rb:100:in on_close' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection.rb:179:inclose' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection.rb:246:in rescue in _connect' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection.rb:230:in_connect' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection/tls.rb:82:in block in _connect' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection/error.rb:26:incall' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection/error.rb:26:in translate' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection/tls.rb:81:in_connect' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection.rb:284:in _write' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor/connection/tls.rb:104:in_write' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:574:in each' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:574:inblock in process_connections' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:574:in each' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:574:inprocess_connections' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:316:in block in run' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:307:inloop' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:307:in run' /root/Desktop/arachni-1.5.1-0.5.12/system/gems/gems/arachni-reactor-0.1.2/lib/arachni/reactor.rb:349:inblock in run_in_thread'

I've tried several ways to fix it without luck. Any clue? Thank you.