2024-08-05 18:33:16.097 +05:30 82732997-7864-4583-b62a-3c938e6975f8 ERR  Upsert Failed System.ArgumentNullException: Cannot pass null model to Validate. (Parameter 'instanceToValidate')
   at FluentValidation.Internal.ExtensionsInternal.Guard(Object obj, String message, String paramName) in /_/src/FluentValidation/Internal/ExtensionsInternal.cs:line 30
   at FluentValidation.AbstractValidator`1.EnsureInstanceNotNull(Object instanceToValidate) in /_/src/FluentValidation/AbstractValidator.cs:line 497
   at FluentValidation.AbstractValidator`1.ValidateInternalAsync(ValidationContext`1 context, Boolean useAsync, CancellationToken cancellation) in /_/src/FluentValidation/AbstractValidator.cs:line 236
   at FluentValidation.AbstractValidator`1.Validate(ValidationContext`1 context) in /_/src/FluentValidation/AbstractValidator.cs:line 202
   at FluentValidation.AbstractValidator`1.Validate(T instance) in /_/src/FluentValidation/AbstractValidator.cs:line 167
   at Sang.CoreSettings.Api.Controllers.TagFieldController.UpsertTagField(TagFieldRequest tagFieldRequest)