fix for if availabilities aren't available

src/helpers/eventlineup.js

@@ -108,7 +108,7 @@ exports.loadSlots = (options) =>{
   players_without_lineup_entry.forEach(member =>{
       const availability = availabilities.find(a=>a.memberId==member.id)
       let initial_slotset
-      if (availability.statusCode == 0 || availability.statusCode == null) {
+      if (availability?.statusCode == 0 || availability?.statusCode == null) {
         initial_slotset =`lineup-out-${event.id}`
       } else {
         initial_slotset =`lineup-bench-${event.id}`