Notice: A non well formed numeric value encountered

classes/User.php

@@ -394,12 +394,12 @@ class User
         return $sign ?? null;
     }
 
-    public function getHealth(): int
+    public function getHealth(): string
     {
         return $this->health.'/'.$this->maxHealth;
     }
 
-    public function getMana(): int
+    public function getMana(): string
     {
         return $this->mana.'/'.$this->maxMana;
     }