FileNotFoundException: Could not find file ..\App_Data\DataProtectionKeys\b1b983e5-8f60-4118-81e7-96d4ec73d672.tmp.

We are very new to NopCommerce and we have recently hosted NopCommerce v 4.4 (downloaded the source code from git) as a Azure Web App. The initial version runs ok. But as soon we publish the subsequent changes we get the following error. And everytime we refresh the page the file that it looks for changes. Any help would be highly appreciated.

FileNotFoundException: Could not find file 'D:\home\site\wwwroot\App_Data\DataProtectionKeys\b1b983e5-8f60-4118-81e7-96d4ec73d672.tmp'.
  • System.IO.FileStream.ValidateFileHandle(SafeFileHandle fileHandle)
  • System.IO.FileStream.CreateFileOpenHandle(FileMode mode, FileShare share, FileOptions options)
  • System.IO.FileStream..ctor(string path, FileMode mode, FileAccess access, FileShare share, int bufferSize, FileOptions options)
  • System.IO.FileStream..ctor(string path, FileMode mode, FileAccess access, FileShare share)
  • System.IO.File.OpenWrite(string path)
  • Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository.StoreElementCore(XElement element, string filename)
  • Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository.StoreElement(XElement element, string friendlyName)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager.Microsoft.AspNetCore.DataProtection.KeyManagement.Internal.IInternalXmlKeyManager.CreateNewKey(Guid keyId, DateTimeOffset creationDate, DateTimeOffset activationDate, DateTimeOffset expirationDate)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager.CreateNewKey(DateTimeOffset activationDate, DateTimeOffset expirationDate)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingProvider.CreateCacheableKeyRingCore(DateTimeOffset now, IKey keyJustAdded)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingProvider.Microsoft.AspNetCore.DataProtection.KeyManagement.Internal.ICacheableKeyRingProvider.GetCacheableKeyRing(DateTimeOffset now)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingProvider.GetCurrentKeyRingCore(DateTime utcNow, bool forceRefresh)
  • Microsoft.AspNetCore.DataProtection.KeyManagement.KeyRingProvider.GetCurrentKeyRing()