diff --git a/application/index/controller/Install.php b/application/index/controller/Install.php
index a7efb717..781eaad2 100644
--- a/application/index/controller/Install.php
+++ b/application/index/controller/Install.php
@@ -133,6 +133,9 @@ public function index($step = 1)
                     } catch (Exception $e) {
                         @unlink(app()->getAppPath() . 'install.lock');
                         $this->error($e->getMessage());
+                    } catch (\Exception $e) {
+                        @unlink(app()->getAppPath() . 'install.lock');
+                        $this->error($e->getMessage());
                     } catch (\PDOException $e) {
                         @unlink(app()->getAppPath() . 'install.lock');
                         $this->error($e->getMessage());