Can anybody please help? I'm getting an error when upgrading to any version above 7.6.5. I've upgraded from 7.5.12 to 7.5.15 and then to 7.6.5. First error I can see when upgrading to to 7.6.7 in Umbraco.TraceLog file is:

2020-01-22 14:56:57,556 [P7160/D8/T5] ERROR Umbraco.Web.Trees.ApplicationTreeController - Unhandled controller exception occurred System.Web.Http.HttpResponseException: Processing of the HTTP request resulted in an exception. Please see the HTTP response returned by the 'Response' property of this exception for details. at System.Web.Http.ModelBinding.FormatterParameterBinding.ReadContentAsync(HttpRequestMessage request, Type type, IEnumerable1 formatters, IFormatterLogger formatterLogger, CancellationToken cancellationToken) at System.Web.Http.ModelBinding.FormatterParameterBinding.ReadContentAsync(HttpRequestMessage request, Type type, IEnumerable1 formatters, IFormatterLogger formatterLogger) at System.Web.Http.ModelBinding.FormatterParameterBinding.

Can anybody please advise? Appreciate your help!