The mod that is listed as a dependency, 'Enable all Feature Flags' requires the Space Age DLC.
I'm assuming this was added in the last update to this mod. Due to this, the mod no longer loads for those without Space Age DLC purchased/loaded so I am suggesting you add the Space Age DLC as a dependency thanks to the reliance on the other mod that requires it. This way others who do not have the DLC (Enabled or purchased) can know the mod will not work for them.
Or perhaps have the additional things that were added/changed needing the mod simply be an option only if the player has the DLC or not and make the other mod be an optional where if the player does have it, the stuff that needs Space Age will be enabled or changed to the updated version.
I'm making this as I had subscribed to the mod the other day ago intending to play with it and the latest update now made this mod pointless for me to try due to not owning Space Age yet.