Inventory Calculation generated an error

Hi @emre
Just for completeness this was the hidden warehouse BUT not stock was assigned to it?

I also think I found the offending Workstation and here is the log with something new:
Till1 said "Adding Supplier"

I think that Supplier was always hidden and they accidentally used it by typo and then crashed the system. All other LOGS after that do not give this message just blank…

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[General Info]

Application: SambaPOS
Version:     5.1.60
Region:      en
DB:          SQ
Machine:     DESKTOP-J72LTAR
User:        Till1
Date:        13/07/2018
Time:        5:44 AM

User Explanation:

Till1 said "Adding Supplier"
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[Exception Info 1]

Top-level Exception
Type:        System.Exception
Message:     Inventory calculation generated an error. Check your recipes.
Source:

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[Exception Info 2]

Top-level Exception
Type:        System.InvalidOperationException
Message:     Sequence contains no matching element
Source:      System.Core
Stack Trace: at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
   at Samba.Modules.InventoryModule.WarehouseInventoryViewModel.UpdateSelectedWarehouse(Int32 warehouseId)
   at Samba.Modules.InventoryModule.WarehouseInventoryViewModel.Refresh(Int32 warehouseId)
   at Samba.Modules.InventoryModule.InventoryModule.OnNavigate(String parameterName)

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Hope that helps.