Error 9.2 commerce installation

Getting error at task 176 of 201 in commerce installation:

[---------------------------------------- CommerceEngine-Initialize_BootStrapCommerceServices : BootStrapCommerceServices ------------------------------------------------------------------]
BootStrapping Commerce Services: commerceshops.sc9.com/.../Bootstrap()
Install-SitecoreConfiguration : The remote server returned an error: (500) Internal Server Error.
At C:\Projects\XC92 Deploy\MyDeploy-Sitecore-Commerce.ps1:93 char:1
+ Install-SitecoreConfiguration @params -ErrorAction Continue *>&1 | Te ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
+ FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Install-SitecoreConfiguration

[TIME] 00:17:09
Invoke-RestMethod : The remote server returned an error: (500) Internal Server Error.
At C:\projects\XC92 Deploy\Modules\InitializeCommerce\InitializeCommerce.psm1:101 char:5
+ Invoke-RestMethod $UrlCommerceShopsServicesBootstrap -TimeoutSec ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand

 

Tried some solutions by googling this error to no avail 

 

Thanks in advance