It just means that because you've taken out one plugin not compatible, the next is now barfing because it's also not compatible.
For Apple, compiling is done with target selection and you hope for the best. The problem is, Apple begins to remove previous OS compatibility as time goes. It's likely that some library is no longer compatible.
I would not count on 10.13 compatibility from here on out, and if you need 1.1.12 you can send an e-mail to support@x-aviation.com stating such.
Honestly, there's no reason to hang on to 10.13, and if you are, it's likely for an app and you should re-evaluate. Apple is going to keep pushing forward, and you're going to get left further and further behind. Finding alternative apps is probably a better idea.