Fix LegacyModule content return

diff --git a/src/LegacyModule.php b/src/LegacyModule.php
index aae7db50a243052e1410aaa7cfaeae5e58b7b45d..bd1792ca5975c4bef388a1a8d9e0240d5252f860 100644 (file)
--- a/src/LegacyModule.php
+++ b/src/LegacyModule.php
@@ -92,7 +92,7 @@ class LegacyModule extends BaseModule
 
                if (\function_exists($function_name)) {
                        $a = DI::app();
-                       return $function_name($a);
+                       return $function_name($a) ?? '';
                }
 
                return '';