diff --git a/lib/Service/OpenAiAPIService.php b/lib/Service/OpenAiAPIService.php
index ac853808..f8ded2ad 100644
--- a/lib/Service/OpenAiAPIService.php
+++ b/lib/Service/OpenAiAPIService.php
@@ -842,7 +842,8 @@ private function buildChatCompletionRequestParams(
 			$params['max_tokens'] = $maxTokens;
 		}
 
-		if ($tools !== null) {
+		// IONOS does not like an empty tool array
+		if ($tools !== null && count($tools) > 0) {
 			$params['tools'] = $tools;
 		}
 		if ($userId !== null && $this->isUsingOpenAi()) {
diff --git a/psalm.xml b/psalm.xml
index 0e06a050..c434ee52 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -8,6 +8,7 @@
 	errorLevel="4"
 	findUnusedBaselineEntry="true"
 	findUnusedCode="false"
+	findUnusedIssueHandlerSuppression="false"
 	resolveFromConfigFile="true"
 	ensureOverrideAttribute="false"
 	phpVersion="8.3"