What means CUDA miner error code number 73? Can not find error code explanations.

I'm using Nicehash and only use Claymore EthDcrMiner64.
Recently i got this error
It happens every 6 or so hours and then my computer freezes.(multiple EthDcrMiner64 Windows popping on)

^{[2017-07-06 17:00:41] [INFO] [ClaymoreDual-MINER_ID(1)-DEVICE_IDs(0,1,2,3,4,5)] Trying to kill [pid(2876)|bin(bin_3rdparty\claymore_dual\EthDcrMiner64.exe)]
[2017-07-06 17:00:41] [INFO] [ClaymoreDual-MINER_ID(1)-DEVICE_IDs(0,1,2,3,4,5)] Exception killing [pid(2876)|bin(bin_3rdparty\claymore_dual\EthDcrMiner64.exe)], exMsg Access is denied
[2017-07-06 17:00:41] [INFO] [ClaymoreDual-MINER_ID(1)-DEVICE_IDs(0,1,2,3,4,5)] Trying to kill [pid(5876)|bin(bin_3rdparty\claymore_dual\EthDcrMiner64.exe)]
[2017-07-06 17:00:41] [INFO] [ClaymoreDual-MINER_ID(1)-DEVICE_IDs(0,1,2,3,4,5)] Exception killing [pid(5876)|bin(bin_3rdparty\claymore_dual\EthDcrMiner64.exe)], exMsg Access is denied
[2017-07-06 17:00:41] [INFO] [ClaymoreDual-MINER_ID(1)-DEVICE_IDs(0,1,2,3,4,5)] Trying to kill [pid(5836)|bin(bin_3rdparty\claymore_dual\EthDcrMiner64.exe)]}
etc

Can you please help!

Hei

I have a problem. I am using mining pool hub first time and i got errors like this:

PS>TerminatingError(Split-Path): "Cannot bind argument to parameter 'Path' because it is null."
Split-Path : Cannot bind argument to parameter 'Path' because it is null.
At C:\Users\i5 K\Downloads\MultiPoolMiner-master\MultiPoolMiner-master\MultiPoolMiner.ps1:114 char:28
+             if((Split-Path $Miner.URI -Leaf) -eq (Split-Path $Miner.P ...
+                            ~~~~~~~~~~
    + CategoryInfo          : InvalidData: ( [Split-Path], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.SplitPathComm


What could be wrong with my setup?