Substratum crashes while building overlays

[Solomon1999]

Hey I'm using a Huawei y5 lite running Android 8.1 Go Edition unrooted. I followed the setup wit Andromeda but whenever I try to build any overlays substratum crashes.
I've got the logs here:

Build version: one thousand twenty two
Device: DRA-LX5 (HWDRA-MG) [HUAWEI/DRA-LX5/HWDRA-MG:8.1.0/HUAWEIDRA-LX5/1.0.0.142(C185):user/release-keys]
ROM: 8.1.0 - Unknown
Theme system: OMS (andromeda)
Stack trace:
java.lang.ExceptionInInitializerError
at projekt.substratum.tabs.OverlaysManager$FinishUpdateTask.lambda$doInBackground$6$OverlaysManager$FinishUpdateTask(OverlaysManager.java:1449)
at projekt.substratum.tabs.-$$Lambda$OverlaysManager$FinishUpdateTask$CRW6PUeVlEOTcv87vXXuDNYjbnk.run(Unknown Source:8)
at android.os.Handler.handleCallback(Handler.java:795)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:166)
at android.os.HandlerThread.run(HandlerThread.java:65)
Caused by: java.lang.NumberFormatException: s == null
at java.lang.Integer.parseInt(Integer.java:570)
at java.lang.Integer.parseInt(Integer.java:643)
at projekt.substratum.common.References.getMagiskDirectory(References.java:254)
at projekt.substratum.common.References.getSystemDir(References.java:250)
at projekt.substratum.common.Internal.(Internal.java:138)
... 6 more
User actions:
2020-07-04 21:37:27: LauncherActivity created
2020-07-04 21:37:27: SplashScreenActivity created
2020-07-04 21:37:27: SplashScreenActivity resumed
2020-07-04 21:37:27: LauncherActivity destroyed
2020-07-04 21:37:28: SplashScreenActivity paused
2020-07-04 21:37:28: MainActivity created
2020-07-04 21:37:28: MainActivity resumed
2020-07-04 21:37:29: SplashScreenActivity destroyed
2020-07-04 21:37:34: MainActivity paused
2020-07-04 21:37:34: ThemeLaunchActivity created
2020-07-04 21:37:34: ThemeLaunchActivity resumed
2020-07-04 21:37:34: ThemeLaunchActivity paused
2020-07-04 21:37:34: ThemeLaunchActivity resumed
2020-07-04 21:37:34: ThemeLaunchActivity paused
2020-07-04 21:37:34: ThemeLaunchActivity resumed
2020-07-04 21:37:34: ThemeLaunchActivity paused
2020-07-04 21:37:34: InformationActivity created
2020-07-04 21:37:35: InformationActivity resumed
2020-07-04 21:37:38: ThemeLaunchActivity destroyed
2020-07-04 21:37:46: InformationActivity paused
2020-07-04 21:37:46: MainActivity resumed
2020-07-04 21:37:46: InformationActivity destroyed
2020-07-04 21:37:48: MainActivity paused
2020-07-04 21:37:48: ThemeLaunchActivity created
2020-07-04 21:37:48: ThemeLaunchActivity resumed
2020-07-04 21:37:48: ThemeLaunchActivity paused
2020-07-04 21:37:49: InformationActivity created
2020-07-04 21:37:49: InformationActivity resumed
2020-07-04 21:37:52: ThemeLaunchActivity destroyed
2020-07-04 21:38:47: InformationActivity paused
2020-07-04 21:38:48: MainActivity resumed
2020-07-04 21:38:48: InformationActivity destroyed