getting error

[sameshitdifferentday]

Status: Downloaded newer image for certbot/certbot:latest
Creating arb2-redis ... done
Creating westerngate_certbot_1 ... done
Creating backend ... done
Creating westerngate_calc_arb_1 ... done
Creating westerngate_nginx_1 ...
Creating westerngate_nginx_1 ... error

ERROR: for westerngate_nginx_1 Cannot start service nginx: driver failed programming external connectivity on endpoint westerngate_nginx_1 (514f82337455f885772d.....................a13b0215d8b0d9d39100): Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use

ERROR: for nginx Cannot start service nginx: driver failed programming external connectivity on endpoint westerngate_nginx_1 (514f82337455f885772d....................................a13b0215d8b0d9d39100): Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use
ERROR: Encountered errors while bringing up the project.