TYPO3 Exception 1533822084¶
Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.
General TYPO3 troubleshooting tips can be found in the section “Troubleshooting” of the menu, and live support is available in the TYPO3 Slack channel #typo3-cms.
Argon2iPasswordHash is not available¶
The following exception may bubble up since TYPO3 v9 during login:
#1533822084 TYPO3\CMS\Core\Crypto\PasswordHashing\InvalidPasswordHashException Configured default hash method TYPO3\CMS\Core\Crypto\PasswordHashing\Argon2iPasswordHash is not available. If the instance has just been upgraded, please log in to the standalone install tool at typo3/install.php to fix this.
If an instance has just been upgraded and if argon2i hash mechanism is not available locally, the default backend will still try to upgrade a given user password to argon2i if the install tool has not been executed once.
This typically happens only if a system has just been upgraded and a backend login is performed before the install tool has executed silent upgarde wizards.