openmediavault-wol 7.0.1 500 - Internal Server Error

Hello, I have installed the openmediavault-wol 7.0.1 plugin to turn on a computer over the network, but when I go to do it after adding the computer, it indicates the following error. What can it be? Thank you.

Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; export LANGUAGE=; etherwake -i end0 F8-E......' with exit code '3':

OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; export LANGUAGE=; etherwake -i end0 F8-E4......' with exit code '3': in /usr/share/php/openmediavault/system/process.inc:247

Stack trace:

#0 /usr/share/openmediavault/engined/rpc/wol.inc(158): OMV\System\Process->execute()

#1 [internal function]: OMVRpcServiceWol->doSend()

#2 /usr/share/php/openmediavault/rpc/serviceabstract.inc(122): call_user_func_array()

#3 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod()

#4 /usr/sbin/omv-engined(544): OMV\Rpc\Rpc::call()

#5 {main}

Thanks, that was the solution, I didn't fall, I copied and pasted it from Windows. Obviously, it doesn't seem to me that it is, it can happen.