From 5f8f0a017929d74c127a7756a0d1b5e73d916a59 Mon Sep 17 00:00:00 2001
From: Pavel Zotikov <pavelzotikov@gmail.com>
Date: Tue, 8 Oct 2024 20:49:27 +0300
Subject: [PATCH] Add null check for previous error handler

---
 src/Handler.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Handler.php b/src/Handler.php
index 236aaee..0e85429 100644
--- a/src/Handler.php
+++ b/src/Handler.php
@@ -203,7 +203,9 @@ public function handleError(int $level, string $message, string $file, int $line
         if ($event !== null) {
             $this->send($event);
 
-            return false !== ($this->previousErrorHandler)($level, $message, $file, $line);
+            if (null !== $this->previousErrorHandler) {
+                return false !== ($this->previousErrorHandler)($level, $message, $file, $line);
+            }
         }
 
         return false;