Cannot inform the listener "org.openhab.core.thing.internal.ChannelLinkNotifier@..."

Hello, I have to catch up here.
I use OH 3.4.0M4 and have the following messages in the log. However, I cannot find the specified UUID in the json files. I use the UI-based configuration.

2022-11-21 06:38:01.031 [ERROR] [ore.common.registry.AbstractRegistry] - Cannot inform the listener "org.openhab.core.thing.internal.ChannelLinkNotifier@19e1575a" about the "ADDED" event: Invalid BigDecimal value: 
java.lang.NumberFormatException: Invalid BigDecimal value:
at org.openhab.core.library.types.DecimalType.<init>(DecimalType.java:102) ~[?:?]
	at org.openhab.core.library.types.DecimalType.<init>(DecimalType.java:86) ~[?:?]
	at org.openhab.binding.speedtest.internal.speedtestHandler.updateChannels(speedtestHandler.java:322) ~[?:?]
	at org.openhab.binding.speedtest.internal.speedtestHandler.handleCommand(speedtestHandler.java:102) ~[?:?]
	at org.openhab.core.thing.binding.BaseThingHandler.channelLinked(BaseThingHandler.java:180) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.lambda$3(ChannelLinkNotifier.java:72) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.call(ChannelLinkNotifier.java:96) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.added(ChannelLinkNotifier.java:72) ~[?:?]
	at org.openhab.core.thing.internal.ChannelLinkNotifier.added(ChannelLinkNotifier.java:1) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.notifyListeners(AbstractRegistry.java:367) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.notifyListenersAboutAddedElement(AbstractRegistry.java:400) ~[?:?]
	at org.openhab.core.thing.link.ItemChannelLinkRegistry.notifyListenersAboutAddedElement(ItemChannelLinkRegistry.java:181) ~[?:?]
	at org.openhab.core.thing.link.ItemChannelLinkRegistry.notifyListenersAboutAddedElement(ItemChannelLinkRegistry.java:1) ~[?:?]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry.addProvider(AbstractRegistry.java:432) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry$ProviderTracker.addingService(AbstractRegistry.java:149) ~[?:?]
	at org.openhab.core.common.registry.AbstractRegistry$ProviderTracker.addingService(AbstractRegistry.java:1) ~[?:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:871) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:321) ~[osgi.core-7.0.0.jar:?]
	at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:264) ~[osgi.core-7.0.0.jar:?]
	at org.openhab.core.common.registry.AbstractRegistry.lambda$0(AbstractRegistry.java:111) ~[?:?]
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700) [?:?]
	at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692) [?:?]
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) [?:?]
	at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) [?:?]
	at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) [?:?]
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) [?:?]
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183) [?:?]

Hello, anyone have any ideas? I just can’t find a way to solve the problem. If I could at least work out what Binding/Thing it might be, but like this…
I have 24 bindings with 193 things and 1678 items running.