1 files changed, 5 insertions, 1 deletions
diff --git a/lib/private/TextProcessing/Manager.php b/lib/private/TextProcessing/Manager.php
index c165f229919..41a4a5dedad 100644
--- a/lib/private/TextProcessing/Manager.php
+++ b/lib/private/TextProcessing/Manager.php
@@ -158,7 +158,11 @@ class Manager implements IManager {
 			throw new PreConditionNotMetException('No LanguageModel provider is installed that can handle this task');
 		}
 		$task->setStatus(OCPTask::STATUS_SCHEDULED);
-		[$provider,] = $this->getPreferredProviders($task);
+		$providers = $this->getPreferredProviders($task);
+		if (count($providers) === 0) {
+			throw new PreConditionNotMetException('No LanguageModel provider is installed that can handle this task');
+		}
+		[$provider,] = $providers;
 		if ($provider instanceof IProviderWithExpectedRuntime) {
 			$completionExpectedAt = new \DateTime('now');
 			$completionExpectedAt->add(new \DateInterval('PT'.$provider->getExpectedRuntime().'S'));