The configuration files (https://github.com/ABCD-DEVCOM/ABCD2/tree/master/zz_installation) for Apache available in the repository provide for the existence of some folders in the root of ABCD.
After setting the “ABCD_ROOT” variable, check if all the expected folders are present in your installation.
By default, Apache cannot start if any directory is missing, therefore, in addition to renaming the ABCD directories, it will be necessary to create a folder called “logs” in the ABCD root.
These logs will refer only to this ABCD installation.
Ref: https://github.com/ABCD-DEVCOM/ABCD2/pull/371