Error while searching

Problem/Motivation

Error came out when searching with Advanced Language Selector dropdown block enabled.

Error: Call to undefined method Drupal\search\Entity\SearchPage::hasTranslation() in Drupal\advanced_language_selector\Plugin\Block\LanguageSelectorBlock->getCurrentUri() (line 411 advanced_language_selector/src/Plugin/Block/LanguageSelectorBlock.php)

Steps to reproduce

1. Enable search block
2. Enable advanced language selector block
3. Search something
4. Error