Version: HQM-1.18.2-5.11.3-forge
When searching up anything in HQM this pops up in the log:

[Render thread/ERROR]: Item search failed with error: java.lang.NoClassDefFoundError: org/apache/logging/log4j/util/MessageSupplier at net.minecraftforge.eventbus.EventBus.handleException(EventBus.java:316) ~[eventbus-5.0.3.jar%232!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:307) ~[eventbus-5.0.3.jar%232!/:?] at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-5.0.3.jar%232!/:?] at net.minecraftforge.event.ForgeEventFactory.onItemTooltip(ForgeEventFactory.java:275) ~[forge-1.18.2-40.2.14-universal.jar%23347!/:?] at net.minecraft.world.item.ItemStack.m_41651_(ItemStack.java:768) ~[client-1.18.2-20220404.173914-srg.jar%23342!/:?] at hardcorequesting.common.forge.client.TextSearch.initItems(TextSearch.java:86) ~[HQM-1.18.2-5.11.3-forge.jar%23185!/:?] at hardcorequesting.common.forge.client.TextSearch.doSearch(TextSearch.java:66) ~[HQM-1.18.2-5.11.3-forge.jar%23185!/:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?] at java.lang.Thread.run(Thread.java:833) ~[?:?]

Sorry but 1.18.1 is not a generally supported version and it never was

This was for 1.18.2 but ok I worked around it.

My guess is that this problem is the same as was fixed by #673 in the 1.19 version of this mod. I'd assume that it could be backported to 1.18 if someone would be up for making that update.