diff --git a/app/helpers/admin/journal_papers_helper.rb b/app/helpers/admin/journal_papers_helper.rb
index 269add5..f4d1969 100644
--- a/app/helpers/admin/journal_papers_helper.rb
+++ b/app/helpers/admin/journal_papers_helper.rb
@@ -82,17 +82,17 @@ module Admin::JournalPapersHelper
   		when 13
   			jls = JournalLevel.asc(:created_at).all.to_a
   			ts  = val.to_s.split(",")
-  			ts.each do |t|
-  				jp.journal_level_ids << jls[t.to_i].id
+  			ts.each do |t| 
+  			  jp.journal_level_ids << jls[t.to_i].id  if t.is_i? && t.to_i < jls.count
   			end
   		when 14
   			jpts = JournalPaperType.asc(:created_at).all.to_a
-  			jp.journal_paper_type = jpts[val.to_i]
+  			jp.journal_paper_type = jpts[val.to_i] if val.is_i? && val.to_i < jpts.count
   		when 15
   			jpas = JournalPaperAuthorType.asc(:created_at).all.to_a
   			ts  = val.to_s.split(",")
   			ts.each do |t|
-  				jp.journal_paper_author_type_ids << jpas[t.to_i].id
+  				jp.journal_paper_author_type_ids << jpas[t.to_i].id if t.is_i? && t.to_i < jpas.count
   			end
   		when 16
   			jp.number_of_authors = val
diff --git a/app/views/admin/journal_papers/excel_format.xlsx.axlsx b/app/views/admin/journal_papers/excel_format.xlsx.axlsx
index c6c671a..e2efe18 100644
--- a/app/views/admin/journal_papers/excel_format.xlsx.axlsx
+++ b/app/views/admin/journal_papers/excel_format.xlsx.axlsx
@@ -59,7 +59,6 @@ wb.add_worksheet(name: "Journal Paper") do |sheet|
   row << t("personal_journal.level_type")
   row1 << "checkbox"
   t = ""
-  keys = []
   JournalLevel.asc(:created_at).each_with_index do |jl,i|
     t = t + "#{i}" + " -> " + jl.title + ", "
   end
@@ -73,7 +72,6 @@ wb.add_worksheet(name: "Journal Paper") do |sheet|
   row << t("personal_journal.paper_type")
   row1 << "select"
   t = ""
-  keys = []
   JournalPaperType.asc(:created_at).each_with_index do |jl,i|
     t = t + "#{i}" + " -> " + jl.title + ", "
   end
@@ -87,7 +85,6 @@ wb.add_worksheet(name: "Journal Paper") do |sheet|
   row << t("personal_journal.author_type")
   row1 << "checkbox"
   t = ""
-  keys = []
   JournalPaperAuthorType.asc(:created_at).each_with_index do |jl,i|
     t = t + "#{i}" + " -> " + jl.title + ", "
   end