Redmine

Good afternoon, there's been a problem recently. Increasing response time when creating and responding to a request. In the logs I see the following "Completed 302 Found in 60625ms (ActiveRecord: 91.6ms)." I tried to turn off all the plugins, but it didn't help.
Tell me what logs you need to attach

Environment:
Redmine version 3.4.4.stable
Ruby version 2.5.1-p57 (2018-03-29) [x86_64-linux-gnu]
Rails version 4.2.11.1
Environment production
Database adapter Mysql2
SCM:
Git 2.17.1
Filesystem
Redmine plugins:
additionals 2.0.9
event_notifications 2.4.1
redmine_autoclose 0.0.4
redmine_checklists 3.1.11
redmine_custom_reports 0.1.5
redmine_documents_short 0.4.0
redmine_email_fetcher 0.3.1
redmine_gemavatar 1.1
redmine_impersonate 1.0.0
redmine_landing_page 0.1.0
redmine_ldap_sync 2.1.1.devel
redmine_lightbox2 0.4.3
redmine_mail_handler_clean_body_regexp 0.1
redmineup_tags 2.0.2
sidebar_hide 0.0.8
view_customize 1.2.2