"Moving" software from one system to another is frought with traps and oopsies. My suggestion is to run (or re-run) the installers for ACP and Scheduler. Please don't uninstall/reinstall. Then on the old system, save ACP's profile and restore it onto the new system. This assumes you are running the same versions of ACP and Scheduler on the old and new systems. If not, upgrade the old system and only then save the profile (ACP menu, Save profile as..."). It will be a zip file you named in Documents\ACP Astronomy\Profiles. Put it onto the new system in that folder and restore.