Error: Call to a member function getCacheTags() on null

During the deployment in other environment, the next error appears.

Error: Call to a member function getCacheTags() on null in Drupal\fixed_block_content\Plugin\Block\FixedBlockContentBlock->getCacheTags() (line 123 of
/var/www/docroot/modules/contrib/fixed_block_content/src/Plugin/Block/FixedBlockContentBlock.php).

And the server is breaking.

Current version used:
"name": "drupal/fixed_block_content",
"version": "1.3.0",
"source": {
"type": "git",
"url": "https://git.drupalcode.org/project/fixed_block_content.git",
"reference": "8.x-1.3"
}