kerinnej82, Hello. Creative Suite is an old product and will no longer work due to a change in the specifications of MacOS 10.15 (due to the end of 32-bit support).
There are so many editions of CC products that do not work. Confirmed to work on MacOS 10.15 in 2019 and 2020.
If you want to use Creative Suite by all means, you need to lower the OS version, but it is not recommended to continue using unsupported products, so we recommend that you take this opportunity to migrate to CC products.