Path.alias_storage

site_factory.domain_negotiator:
class: 'Drupal\site_factory\DomainNegotiator'
arguments:
- '@request_stack'
- '@entity_type.manager'
- '@language_manager'
- '@path_alias'
- '@site_factory.site_manager'
tags:
- { name: path_processor_inbound, priority: 900 }
- { name: path_processor_outbound, priority: 400 }

Try using "path_alias" instead for former.
Thanks

Obtain a version of the module that is compatible with Drupal 9 or uninstall it.

Automatically closed - issue fixed for 2 weeks with no activity.