User_List 내보내기 실패

사용자 목록을 내보내려고 하면 "데이터 내보내기 실패"라는 알림이 표시됩니다. 실제로도 내보내기가 실패하지만, 에러 로그에는 관련 항목이 보이지 않습니다. 2020년 9월 15일에는 사용자 목록을 성공적으로 내보낸 적이 있습니다. Data Explorer가 오류 없이 실행되고 있으므로 데이터베이스 문제는 아닌 것 같습니다. 혹시 아이디어가 있을까요?

OP에 대한 업데이트.
오늘 이 문제를 다시 살펴보다가 만료된 초대장을 여러 개 발견하여 삭제했습니다. 같은 방식으로 사용자 내보내기를 다시 시도했지만 결과는 동일했고, 여전히 오류 보고서는 나오지 않았습니다. 그 다음 ./launcher rebuild app을 실행한 후 사용자 내보내기를 다시 시도했는데, 이번에는 실패하면서 오류 보고서가 생성되었습니다. 아래를 확인해 주세요:

정보:

Job exception: undefined method `email’ for nil:NilClass

backtrace:
/var/www/discourse/app/models/user.rb:1247:in `email’

/var/www/discourse/app/jobs/regular/export_csv_file.rb:261:in `get_base_user_array'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:128:in `block in user_list_export'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:70:in `block (2 levels) in find_each'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:70:in `each'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:70:in `block in find_each'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:136:in `block in find_in_batches'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:238:in `block in in_batches'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:222:in `loop'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:222:in `in_batches'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:135:in `find_in_batches'

activerecord-6.0.3.3/lib/active_record/relation/batches.rb:69:in `find_each'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:127:in `user_list_export'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:66:in `each'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:66:in `block (2 levels) in execute'

/usr/local/lib/ruby/2.6.0/csv.rb:657:in `open'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:64:in `block in execute'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:63:in `each'

/var/www/discourse/app/jobs/regular/export_csv_file.rb:63:in `execute'

/var/www/discourse/app/jobs/base.rb:232:in `block (2 levels) in perform'

rails_multisite-2.5.0/lib/rails_multisite/connection_management.rb:76:in `with_connection'

/var/www/discourse/app/jobs/base.rb:221:in `block in perform'

/var/www/discourse/app/jobs/base.rb:217:in `each'

/var/www/discourse/app/jobs/base.rb:217:in `perform'

sidekiq-6.1.2/lib/sidekiq/processor.rb:196:in `execute_job'

sidekiq-6.1.2/lib/sidekiq/processor.rb:164:in `block (2 levels) in process'

sidekiq-6.1.2/lib/sidekiq/middleware/chain.rb:138:in `block in invoke'

/var/www/discourse/lib/sidekiq/pausable.rb:138:in `call'

sidekiq-6.1.2/lib/sidekiq/middleware/chain.rb:140:in `block in invoke'

sidekiq-6.1.2/lib/sidekiq/middleware/chain.rb:143:in `invoke'

sidekiq-6.1.2/lib/sidekiq/processor.rb:163:in `block in process'

sidekiq-6.1.2/lib/sidekiq/processor.rb:136:in `block (6 levels) in dispatch'

sidekiq-6.1.2/lib/sidekiq/job_retry.rb:111:in `local'

sidekiq-6.1.2/lib/sidekiq/processor.rb:135:in `block (5 levels) in dispatch'

sidekiq-6.1.2/lib/sidekiq.rb:38:in `block in <module:Sidekiq>'

sidekiq-6.1.2/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch'

sidekiq-6.1.2/lib/sidekiq/processor.rb:257:in `stats'

sidekiq-6.1.2/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch'

sidekiq-6.1.2/lib/sidekiq/job_logger.rb:13:in `call'

sidekiq-6.1.2/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch'

sidekiq-6.1.2/lib/sidekiq/job_retry.rb:78:in `global'

sidekiq-6.1.2/lib/sidekiq/processor.rb:124:in `block in dispatch'

sidekiq-6.1.2/lib/sidekiq/logger.rb:10:in `with'

sidekiq-6.1.2/lib/sidekiq/job_logger.rb:33:in `prepare'

sidekiq-6.1.2/lib/sidekiq/processor.rb:123:in `dispatch'

sidekiq-6.1.2/lib/sidekiq/processor.rb:162:in `process'

sidekiq-6.1.2/lib/sidekiq/processor.rb:78:in `process_one'

sidekiq-6.1.2/lib/sidekiq/processor.rb:68:in `run'

sidekiq-6.1.2/lib/sidekiq/util.rb:15:in `watchdog'

sidekiq-6.1.2/lib/sidekiq/util.rb:24:in `block in safe_thread'

env:

hostname ubuntu-s-1vcpu-1gb-nyc1-01-app
|process_id|771|
|application_version|a47c8f05855a7b4a15d69dfbf3ef1e894a35f418|
|current_db|default|
|current_hostname|discourse.example.com|
|job|Jobs::ExportCsvFile|
|problem_db|default|
|time|3:10 pm|
|||
|opts||
|entity|user_list|
|user_id|1|
|current_site_id|default|
|||
|args||
|trust_level|active|

이 문제를 해결하는 데 도움이 되는 조언을 정말로 감사히 받겠습니다. 미리 감사합니다.