Add try-catch for activation hook

[MAILPOET-3656]

lib/Config/Initializer.php

@@ -184,7 +184,13 @@ class Initializer {
   }
 
   public function runActivator() {
-    return $this->activator->activate();
+    try {
+      $this->activator->activate();
+    } catch (InvalidStateException $e) {
+      return $this->handleRunningMigration($e);
+    } catch (\Exception $e) {
+      return $this->handleFailedInitialization($e);
+    }
   }
 
   public function preInitialize() {
@@ -246,7 +252,7 @@ class Initializer {
 
     // if current db version and plugin version differ
     if (version_compare($currentDbVersion, Env::$version) !== 0) {
-      $this->runActivator();
+      $this->activator->activate();
     }
   }