com.intellij.openapi.project.IndexNotReadyException: Please change caller according to com.intellij.openapi.project.IndexNotReadyException documentation

[tyteen4a03]

Hey, I'm getting this error with PHP Toolbox 6.0 with PhpStorm 2021.2.3.

com.intellij.openapi.project.IndexNotReadyException: Please change caller according to com.intellij.openapi.project.IndexNotReadyException documentation
	at com.intellij.openapi.project.IndexNotReadyException.create(IndexNotReadyException.java:67)
	at com.intellij.util.indexing.FileBasedIndexImpl.handleDumbMode(FileBasedIndexImpl.java:821)
	at com.intellij.util.indexing.FileBasedIndexImpl.ensureUpToDate(FileBasedIndexImpl.java:773)
	at com.intellij.psi.stubs.StubIndexImpl.getContainingIds(StubIndexImpl.java:501)
	at com.intellij.psi.stubs.StubIndexImpl.processElements(StubIndexImpl.java:305)
	at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:100)
	at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:88)
	at com.jetbrains.php.PhpIndexImpl.getElements(PhpIndexImpl.java:574)
	at com.jetbrains.php.PhpIndexImpl.getByName(PhpIndexImpl.java:992)
	at com.jetbrains.php.PhpIndexImpl.getByFQN(PhpIndexImpl.java:967)
	at com.jetbrains.php.PhpIndexImpl.getClassesByFQNInternal(PhpIndexImpl.java:1042)
	at com.jetbrains.php.PhpIndexImpl.getAnyByFQN(PhpIndexImpl.java:1079)
	at com.jetbrains.php.PhpIndexImpl.getBySignatureInternal(PhpIndexImpl.java:726)
	at com.jetbrains.php.PhpIndexImpl.getBySignature(PhpIndexImpl.java:662)
	at com.jetbrains.php.PhpIndexImpl.doCompleteType(PhpIndexImpl.java:171)
	at com.jetbrains.php.PhpIndexImpl.completeType(PhpIndexImpl.java:115)
	at com.jetbrains.php.PhpIndexImpl.getClasses(PhpIndexImpl.java:237)
	at com.jetbrains.php.PhpIndexImpl.getBySignatureInternal(PhpIndexImpl.java:757)
	at com.jetbrains.php.PhpIndexImpl.getBySignature(PhpIndexImpl.java:662)
	at de.espend.idea.php.toolbox.type.PhpToolboxTypeProvider.getBySignature(PhpToolboxTypeProvider.java:99)
	at com.jetbrains.php.PhpIndexImpl.getBySignatureInternal(PhpIndexImpl.java:782)
	at com.jetbrains.php.PhpIndexImpl.getBySignature(PhpIndexImpl.java:662)
	at com.jetbrains.php.PhpIndexImpl.doCompleteType(PhpIndexImpl.java:171)
	at com.jetbrains.php.PhpIndexImpl.completeType(PhpIndexImpl.java:115)
	at com.jetbrains.php.PhpIndexImpl.completeType(PhpIndexImpl.java:94)
	at com.jetbrains.php.lang.psi.resolve.types.PhpType.global(PhpType.java:688)
	at com.jetbrains.php.lang.psi.elements.PhpTypedElement.getGlobalType(PhpTypedElement.java:58)
	at com.jetbrains.php.PhpPresentationUtil.formatType(PhpPresentationUtil.java:234)
	at com.jetbrains.php.structureView.PhpStructureViewTreeElement.createPresentation(PhpStructureViewTreeElement.java:105)
	at com.jetbrains.php.structureView.PhpStructureViewTreeElement.<init>(PhpStructureViewTreeElement.java:52)
	at com.jetbrains.php.structureView.PhpStructureViewTreeElement.collectChildren(PhpStructureViewTreeElement.java:184)
	at com.jetbrains.php.structureView.PhpStructureViewTreeElement.getChildrenBase(PhpStructureViewTreeElement.java:162)
	at com.intellij.ide.structureView.impl.common.PsiTreeElementBase.doGetChildren(PsiTreeElementBase.java:84)
	at com.intellij.ide.structureView.impl.common.PsiTreeElementBase.lambda$getChildrenWithoutCustomRegions$1(PsiTreeElementBase.java:79)
	at com.intellij.ide.util.treeView.AbstractTreeUi.calculateYieldingToWriteAction(AbstractTreeUi.java:1716)
	at com.intellij.ide.structureView.impl.common.PsiTreeElementBase.getChildrenWithoutCustomRegions(PsiTreeElementBase.java:79)
	at com.intellij.ide.navigationToolbar.StructureAwareNavBarModelExtension.childrenFromNodeAndProviders(StructureAwareNavBarModelExtension.kt:137)
	at com.intellij.ide.navigationToolbar.StructureAwareNavBarModelExtension.findParentInModel(StructureAwareNavBarModelExtension.kt:87)
	at com.intellij.ide.navigationToolbar.StructureAwareNavBarModelExtension.findParentInModel(StructureAwareNavBarModelExtension.kt:91)
	at com.intellij.ide.navigationToolbar.StructureAwareNavBarModelExtension.getParent(StructureAwareNavBarModelExtension.kt:73)
	at com.intellij.ide.navigationToolbar.NavBarModelBuilderImpl.traverseToRoot(NavBarModelBuilderImpl.java:37)
	at com.intellij.ide.navigationToolbar.NavBarModelBuilder.createModel(NavBarModelBuilder.java:30)
	at com.intellij.ide.navigationToolbar.NavBarModel.lambda$createModel$2(NavBarModel.java:231)
	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:854)
	at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:61)
	at com.intellij.ide.navigationToolbar.NavBarModel.createModel(NavBarModel.java:231)
	at com.intellij.ide.navigationToolbar.NavBarModel.createModel(NavBarModel.java:168)
	at com.intellij.ide.navigationToolbar.NavBarModel.lambda$updateModelAsync$0(NavBarModel.java:104)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.insideReadAction(NonBlockingReadActionImpl.java:521)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$attemptComputation$3(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1078)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:78)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:161)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:118)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:57)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:183)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:705)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:647)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:63)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:170)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:57)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:115)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:78)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.attemptComputation(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$transferToBgThread$1(NonBlockingReadActionImpl.java:407)
	at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:216)
	at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:27)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.execute(BoundedTaskExecutor.java:195)
	at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:213)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:184)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:829)