Returns the error text from the last SSL error, or other internal errors in the crypto suite of functions. Use crypto_last_ssl_error() instead to get the code of the last SSL error. ⇨ Version 5.32 -- Previously if the crypto error originated from Miva Empresa, the returned error was always the same. If the crypto error was from OpenSSL then it would be lost after calling the function. Modified to always return the last crypto error.