Check if age is nil before checking totadult

app/models/case_log.rb

@@ -235,7 +235,7 @@ private
       age = eval("age#{i}")
       relat = eval("relat#{i}")
       # rubocop:enable Style/EvalWithLocation, Security/Eval::
-      !age.nil? && (age >= 16 && age < 18 && %w[Partner Other].include?(relat)) || age >= 18 && age < 60
+      !age.nil? && ((age >= 16 && age < 18 && %w[Partner Other].include?(relat)) || age >= 18 && age < 60)
     end
   end