can you help me how to solve this problem?
this is the problem:
Server Error in '/AviaBellaVidaChecklist' Application.
Invalid attempt to read when no data is present.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: Invalid attempt to read when no data is present.