full text retrieval loads endlessly

[u6aab]

The entries in my feeds update correctly but the full text doesn't load. when i force stop the app and reopen it works for a little bit.

FATAL EXCEPTION: IntentService[FetcherService]
Process: org.decsync.flym, PID: 6906
java.lang.IllegalArgumentException: org.decsync.flym: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
	at android.app.PendingIntent.checkFlags(PendingIntent.java:375)
	at android.app.PendingIntent.getActivityAsUser(PendingIntent.java:458)
	at android.app.PendingIntent.getActivity(PendingIntent.java:444)
	at android.app.PendingIntent.getActivity(PendingIntent.java:408)
	at org.decsync.flym.service.FetcherService$Companion.showRefreshNotification(SourceFile:12)
	at org.decsync.flym.service.FetcherService$Companion.fetch(SourceFile:25)
	at org.decsync.flym.service.FetcherService.onHandleIntent(SourceFile:6)
	at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78)
	at android.os.Handler.dispatchMessage(Handler.java:106)
	at android.os.Looper.loopOnce(Looper.java:201)
	at android.os.Looper.loop(Looper.java:288)
	at android.os.HandlerThread.run(HandlerThread.java:67)