Newtonsoft.Json.JsonSerializationException: Error converting value {null} to type 'System.Decimal'. Path '[1].current_price', line 1, position 991.
 ---> System.InvalidCastException: Null object cannot be converted to a value type.
   at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
   --- End of inner exception stack trace ---
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureType(JsonReader reader, Object value, CultureInfo culture, JsonContract contract, Type targetType)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject(Object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList(IList list, JsonReader reader, JsonArrayContract contract, JsonProperty containerProperty, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at CryptoScanner.Services.CoinGeckoService.GetTopCoinsAsync() in C:\Users\user\OneDrive\Desktop\SmartCrypto.Web\SmartCrypto.Web\SmartCrypto.Web\Services\CoinGeckoService.cs:line 34
   at CryptoScanner.Services.MarketScannerService.ScanAsync() in C:\Users\user\OneDrive\Desktop\SmartCrypto.Web\SmartCrypto.Web\SmartCrypto.Web\Services\MarketScannerService.cs:line 36
   at SmartCrypto.Web.Controllers.DashboardController.Index() in C:\Users\user\OneDrive\Desktop\SmartCrypto.Web\SmartCrypto.Web\SmartCrypto.Web\Controllers\DashboardController.cs:line 27