For running Clickhouse setup, atleast 1.5GB of memory should be allocated in docker. This is just for demo/testing purpose.
Choosing Kafka + Druid should install a tiny instance setting which runs with 4GB of memory. This is just for demo/testing purpose and not to be used in production.
You need to check the memory allocated to docker. Follow below steps:
a) Choose the Docker menu whale menu > Preferences from the menu bar and configure the runtime options described below.
b) Choose Resources from Preferences Menu and change Memory to 4GB for Kafka + Druid Setup. For Clickhouse setup, this should be atleast 2GB.