No. Condoms do not cause impotency or any erection problems by itself. Erection problems may result because of physical or emotional or both reasons. Some men may be averse to condoms that they might lose an erection after wearing a condom.
This has nothing to do with condom, and a lot to do with their mindset. For few older men, who may already have difficulty in sustaining an erection may lose their erection in the process of wearing a condom and indulging in penetrative sex as some condoms may reduce the sensation. For those men, using lubrication can help in increasing the sensation and enjoy a sustained erection with a condom.
Condom by itself cannot interfere with male erection.