bug fix for upload

app/controllers/admin/universal_tables_controller.rb

@@ -177,17 +177,19 @@ end
 									when "image"
 										ce.remote_image_url = val
 									when "file"
-										val.split("\;").each do |remote_file|
-											file = ColumnEntryFile.new
-											file.remote_file_url = remote_file
-											filename = {}
-											file.choose_lang.choose_lang.reject(&:empty?).each do |lang|
-												filename[lang] = file.file.file.filename
+										if !val.nil?
+											val.split("\;").each do |remote_file|
+												file = ColumnEntryFile.new
+												file.remote_file_url = remote_file
+												filename = {}
+												file.choose_lang.reject(&:empty?).each do |lang|
+													filename[lang] = file.file.file.filename
+												end
+												file.file_title_translations = filename
+												# file.column_entry_id = ce.id
+												file.save
+												ce.column_entry_files << file
 											end
-											file.file_title = filename
-											# file.column_entry_id = ce.id
-											file.save
-											ce.column_entry_files << file
 										end
 			        		when "editor"
 			        			v = {}