Avoid some database errors

src/Model/Post/Media.php

@@ -85,6 +85,7 @@ class Media
 		}
 
 		$media = self::unsetEmptyFields($media);
+		$media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 
 		// We are storing as fast as possible to avoid duplicated network requests
 		// when fetching additional information for pictures and other content.
@@ -94,6 +95,7 @@ class Media
 
 		$media = self::fetchAdditionalData($media);
 		$media = self::unsetEmptyFields($media);
+		$media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
 
 		if (array_diff_assoc($media, $stored)) {
 			$result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);

src/Navigation/Notifications/Repository/Notification.php

@@ -251,7 +251,7 @@ class Notification extends BaseRepository
 			$this->db->update(self::$table_name, $fields, ['id' => $Notification->id]);
 		} else {
 			$fields['created'] = DateTimeFormat::utcNow();
-			$this->db->insert(self::$table_name, $fields);
+			$this->db->insert(self::$table_name, $fields, Database::INSERT_IGNORE);
 
 			$Notification = $this->selectOneById($this->db->lastInsertId());
 		}

src/Protocol/ActivityPub/Receiver.php

@@ -29,6 +29,7 @@ use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
 use Friendica\Core\System;
 use Friendica\Core\Worker;
+use Friendica\Database\Database;
 use Friendica\DI;
 use Friendica\Model\Contact;
 use Friendica\Model\APContact;
@@ -1911,7 +1912,7 @@ class Receiver
 	private static function addArrivedId(string $id)
 	{
 		DBA::delete('arrived-activity', ["`received` < ?", DateTimeFormat::utc('now - 5 minutes')]);
-		DBA::insert('arrived-activity', ['object-id' => $id, 'received' => DateTimeFormat::utcNow()]);
+		DBA::insert('arrived-activity', ['object-id' => $id, 'received' => DateTimeFormat::utcNow()], Database::INSERT_IGNORE);
 	}
 
 	/**