[AVR USART 0] RX Frame Error

I´m trying to receive some data sent by a server (programmed in C#; I don´t have the source code) to my Arduino Mega via serial port.

I´m working with the design tool Proteus (versions 7.9 SP1 and 8.1 SP1), having the Simulino libray installed, using COMPIM as the serial interface.

I have no problem if I use the Arduino UNO to receive the data, but when I use the Arduino MEGA I get the following error message from Proteus:

[AVR USART 0] RX Frame Error

I attach an image regarding the error.

I would be very grateful if somebody could help me with this problem.

Thank you so much.

I would be very grateful if somebody could help me with this problem.

It's not an Arduino problem. So, this is the wrong place to be asking for help.

Sorry but I don´t think so: regardless I´m using Proteus, the problem is that I don´t receive data with Arduino Mega, seemingly because of an usart frame error.

So, if you don´t mind, I continue asking for help here.

Many thanks.

the problem is that I don´t receive data with Arduino Mega,

From where? Using what code?

If you think the problem is with the code on the Arduino, where the hell is the code?

Baud rate?