diff --git a/app/Events/Invoice/InvoiceWasEmailedAndFailed.php b/app/Events/Invoice/InvoiceWasEmailedAndFailed.php
index b81b900c4c3d..d622f216facf 100644
--- a/app/Events/Invoice/InvoiceWasEmailedAndFailed.php
+++ b/app/Events/Invoice/InvoiceWasEmailedAndFailed.php
@@ -40,7 +40,7 @@ class InvoiceWasEmailedAndFailed
      *
      * @param Invoice $invoice
      */
-    public function __construct(Invoice $invoice, Company $company, array $errors, array $event_vars)
+    public function __construct(Invoice $invoice, Company $company, string $errors, array $event_vars)
     {
         $this->invoice = $invoice;
         
diff --git a/app/Models/BaseModel.php b/app/Models/BaseModel.php
index 78b1d9807614..50e90acd63a3 100644
--- a/app/Models/BaseModel.php
+++ b/app/Models/BaseModel.php
@@ -23,6 +23,7 @@ use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\ModelNotFoundException as ModelNotFoundException;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Carbon;
 
 class BaseModel extends Model
 {
@@ -50,7 +51,7 @@ class BaseModel extends Model
         return $this->encodePrimaryKey($this->id);
     }
 
-    public function dateMutatorw($value)
+    public function dateMutator($value)
     {
         if (!empty($value)) {
             return (new Carbon($value))->format('Y-m-d');