System crashing after fetch attempts happen

When using the Mozilla backend for UnifiedNlp on Lineage+microG I get a reboot. I am currently not able to reproduce this crash extremely reliably but it seems to be related to use of Instagram and NewPipe one after another. Here's a snippet from logcat:

08-27 21:37:37.881  1267  1745 W Watchdog: *** WATCHDOG KILLING SYSTEM PROCESS: Blocked in handler on main thread (main)
08-27 21:37:37.886  1267  1745 W Watchdog: main annotated stack trace:
08-27 21:37:37.886  1267  1745 W Watchdog:     at com.android.server.ServiceWatcher.onServiceDisconnected(ServiceWatcher.java:384)
08-27 21:37:37.887  1267  1745 W Watchdog:     - waiting to lock <0x082047a2> (a java.lang.Object)
08-27 21:37:37.887  1267  1745 W Watchdog:     at android.app.LoadedApk$ServiceDispatcher.doDeath(LoadedApk.java:1749)
08-27 21:37:37.887  1267  1745 W Watchdog:     at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1764)
08-27 21:37:37.887  1267  1745 W Watchdog:     at android.os.Handler.handleCallback(Handler.java:873)
08-27 21:37:37.887  1267  1745 W Watchdog:     at android.os.Handler.dispatchMessage(Handler.java:99)
08-27 21:37:37.887  1267  1745 W Watchdog:     at android.os.Looper.loop(Looper.java:193)
08-27 21:37:37.887  1267  1745 W Watchdog:     at com.android.server.SystemServer.run(SystemServer.java:480)
08-27 21:37:37.887  1267  1745 W Watchdog:     at com.android.server.SystemServer.main(SystemServer.java:302)
08-27 21:37:37.887  1267  1745 W Watchdog:     at java.lang.reflect.Method.invoke(Native Method)
08-27 21:37:37.887  1267  1745 W Watchdog:     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
08-27 21:37:37.887  1267  1745 W Watchdog:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:838)
08-27 21:37:37.888  1267  1745 W Watchdog: *** GOODBYE!
08-27 21:37:38.074  8542  8542 E AndroidRuntime: FATAL EXCEPTION: main
08-27 21:37:38.074  8542  8542 E AndroidRuntime: Process: com.android.phone, PID: 8542
08-27 21:37:38.074  8542  8542 E AndroidRuntime: DeadSystemException: The system died; earlier logs will point to the root cause
08-27 21:37:38.079  6955  6955 E AndroidRuntime: FATAL EXCEPTION: main
08-27 21:37:38.079  6955  6955 E AndroidRuntime: Process: org.microg.nlp.backend.ichnaea, PID: 6955
08-27 21:37:38.079  6955  6955 E AndroidRuntime: java.lang.RuntimeException: Unable to unbind to service org.microg.nlp.backend.ichnaea.BackendService@9fb379c with Intent { act=org.microg.nlp.LOCATION_BACKEND pkg=org.microg.nlp.backend.ichnaea cmp=org.microg.nlp.backend.ichnaea/.BackendService }: java.lang.IllegalStateException: Do not call onClose if not opened before
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.app.ActivityThread.handleUnbindService(ActivityThread.java:3641)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.app.ActivityThread.access$1500(ActivityThread.java:200)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1682)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.os.Handler.dispatchMessage(Handler.java:106)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.os.Looper.loop(Looper.java:193)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.app.ActivityThread.main(ActivityThread.java:6718)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at java.lang.reflect.Method.invoke(Native Method)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: Caused by: java.lang.IllegalStateException: Do not call onClose if not opened before
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.api.AbstractBackendHelper.onClose(AbstractBackendHelper.java:47)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.api.CellBackendHelper.onClose(CellBackendHelper.java:382)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.api.HelperLocationBackendService.onClose(HelperLocationBackendService.java:64)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.backend.ichnaea.BackendService.onClose(BackendService.java:153)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.api.LocationBackendService.disconnect(LocationBackendService.java:80)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at org.microg.nlp.api.AbstractBackendService.onUnbind(AbstractBackendService.java:58)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	at android.app.ActivityThread.handleUnbindService(ActivityThread.java:3625)
08-27 21:37:38.079  6955  6955 E AndroidRuntime: 	... 8 more
08-27 21:37:38.131   618   635 D NetlinkEvent: Unknown ifindex 33 in RTM_DELADDR
08-27 21:37:38.364  8741  8741 I wificond: wificond is starting up...