I guess your Taichi version is Taichi·Yang(or Taichi·Magisk) and the Taichi App and module version are both 6.2.0.
The reasons modules are not supported may be:
1. Some modules are currently outdated and not compilable with Android Q. The only way to use these modules is to downgrade your Android version.
2. Some modules do work on Android P, Q but are not whitelisted in Taichi repository. Taichi is an app that uses whitelist feature almost everywhere...such as the modules, the version of modules, the kernel it uses, and the taichi app itself. If you use a newer version or a highly outdated version of a module that is not whitelisted in taichi's repo you cannot use it. If you forced to enable it , the module cannot work, either.
To solve this, consider submitting the module(current unsupported version) to admin.taichi.cool( you need an account so you have to register first) ,select if it needs Taichi·Magisk or just simply Taichi·Ying and wait for several days. When it passes weishu's verify, you can use your module with the version you submitted. Another way is to pm weishu to get a Wuji code and unlock the Taichi's restriction of modules with the code and you can use any modules you want. (you can pm him via telegram )
if you want as many modules to function well as possible, please make sure your Taichi is Taichi.Magisk and then use the code, restart taichi app and update the taichi kernel or engine. Then most of the modules should work.
OR A MUCH SIMPLER WAY——UNINSTALL TAICHI AND THE TAICHI MODULE, GO GET EDXPOSED AND RIRU.
Also , the system UI crash on your OOS is possibly you use some UI changing modules that isn't officially supporting Taichi. Considering change the module you use or use EdXposed instead. If Edxposed fails too, that means this module cannot support Android pie.