I have been trying to upgrade to 8.8.3 from 8.4.4 for some time. My 8.4.4 site was holding but after repairing a database malfulnction in which the watchdog file went mad with assert errors, now I can't login to the back end. After failing to login using the login module on the front page, the WSOD appears with this meesage.
'''The website encountered an unexpected error. Please try again later.Drupal\Core\Extension\InfoParserException: Missing required keys (core) in core/modules/path_alias/path_alias.info.yml in Drupal\Core\Extension\InfoParserDynamic->parse() (line 29 of core/lib/Drupal/Core/Extension/InfoParserDynamic.php).'''
I don't know where to start with this.