I think some products expect LDAP data to be structured in a certain way ("schemas"). Not sure what pfsense expects to exist in LDAP. Maybe they are supporting OpenLDAP or something?
@mariolop77 Best bet is to build your own. See https://docs.cloudron.io/packaging/tutorial/ . You can start with the lamp repo - https://git.cloudron.io/cloudron/lamp-app . Just have to replace the mysql addon with postgresql in the manifest - https://git.cloudron.io/cloudron/lamp-app/-/blob/master/CloudronManifest.json#L16