Catalytic converter fault and Antipollution Faullt

While driving with my vehicle, "Catalytic converter fault and Antipollution Faullt" received this warning and the vehicle fell out of traction. What is the reason I am waiting for your help?

erhan brother, if you search in the forum you will find many topics called Antipollution Faullt.

You can solve the malfunction of your vehicle's catalytic converter by emptying it. Then I think that the Antipollution fault error will go away.

Antipollition faulty error is the problem in the vehicles with lpg.

He gave the same two warnings, I canceled the catalyst from the vehicle and I pulled the catalyst until the end, I pulled a straight pipe and got hks exhaust at the end. Now there is no slight traction loss. The mistake that my catalyst has always been torn down is because of it, the error is now like a monster.