Website Application - User Request Error

Error in:
https://sasomanipur.org/WebResource.axd?d=pynGkmcFUV13He1Qd6_TZNKxbwfV5VtrkJa9CCP6TaE8TBLEd176uGjWAXI1HMxvNE0LKfz7vUoM9rmd1WZlfw2&t=638562759717896622

Error Message:
This is an invalid webresource request.

Stacktrace Error Message:
at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Return Process
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