我已经安装了elastic enterprise search 7.9，但在启动它时出现以下错误。我不知道该怎么解决它，因为它似乎是一个产品编码错误。

2020-09-02T15:36:03.760+00:00][3979][2000][app-server][INFO]: [db_lock] [installation] Status: [Failed] Creating a default user account: Error = NoMethodError: undefined method `id' for nil:NilClass
Unexpected exception while running Enterprise Search:
Error: undefined method `id' for nil:NilClass at org/jruby/RubyArray.java:2580:in `map'
        /home/johndoe/ees-install/enterprise-search-7.9.0/lib/war/lib/actastic/actastic_record.class:379:in `block in frito_pie_groups='
        org/jruby/RubyKernel.java:1974:in `public_send'
        /home/johndoe/ees-install/enterprise-search-7.9.0/lib/war/lib/actastic/actastic_record.class:733:in `block in assign_attributes_from_user'
        org/jruby/RubyHash.java:1428:in `each'

...
你知道吗？您是如何在您的环境中安装7.9的？