The $message parameter passed to the LoggerInterface methods must be a literal string that uses placeholders

Problem/Motivation

The $message parameter passed to the LoggerInterface methods must be a literal string that uses placeholders. It's not a translatable string returned from t()/$this->t(), a string concatenation, a value returned from a function/method, nor a variable containing an exception object.

$this->logger->error($this->t('Error in the request: @message', ['@message' => $e->getMessage()]));
$this->logger->error($this->t('The JSON could not be obtained from the service provided.'));
$this->logger->error($this->t('The JSON could not be obtained from the service provided.'));

Proposed resolution

Review and update the module code.