VirtualBox error "Could not connect to host (http://127.0.0.1:18083/) Solution

You got this Errormessage in your OpenMediaVault?

Error #64:exception 'Exception' with message 'Could not connect to host (http://127.0.0.1:18083/)' in /usr/share/phpvirtualbox/lib/vboxconnector.php:210Stack trace:#0 /usr/share/openmediavault/engined/rpc/virtualbox.inc(176): vboxconnector->connect()#1 [internal function]: OMVRpcServiceVirtualBox->getMachines(Array, Array)#2 /usr/share/php/openmediavault/rpcservice.inc(125): call_user_func_array(Array, Array)#3 /usr/share/php/openmediavault/rpc.inc(79): OMVRpcServiceAbstract->callMethod('getMachines', Array, Array)#4 /usr/sbin/omv-engined(501): OMVRpc::exec('VirtualBox', 'getMachines', Array, Array, 1)#5 {main}

Try this:

/etc/init.d/vboxdrv setup

Did it gone well? Or did you et this Message?:

Stopping VirtualBox kernel modules ...done.Recompiling VirtualBox kernel modules ...failed!  (Look at /var/log/vbox-install.log to find out what went wrong)

In the Logfile you find this information?: 

Makefile:181: *** Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR= and run Make again. Stop.

Then try this:

apt-get updateapt-cache search linux-headers-$(uname -r)Install linux-header package under Debina or Ubuntu Linuxapt-get install linux-headers-$(uname -r)

And again:

/etc/init.d/vboxdrv setup