NoMethodError: undefined method `to_i' for ["2"]:Array

https://sentry.gitlab.net/gitlab/gitlabcom/issues/912946/

NoMethodError: undefined method `to_i' for ["2"]:Array
Did you mean?  to_s
               to_a
               to_h
  kaminari/activerecord/active_record_model_extension.rb:16:in `page'
    limit(per_page).offset(per_page * ((num = num.to_i - 1) < 0 ? 0 : num)).extending do
  active_record/relation/delegation.rb:97:in `block in page'
    scoping { @klass.#{method}(*args, &block) }
  active_record/relation.rb:281:in `scoping'
    yield
  active_record/relation/delegation.rb:97:in `page'
    scoping { @klass.#{method}(*args, &block) }
  explore/projects_controller.rb:64:in `load_projects'
    .page(params[:page])
...
(121 additional frame(s) were not displayed)

NoMethodError: undefined method `to_i' for ["2"]:Array
Did you mean?  to_s
               to_a
               to_h