correct a crash if the game is started before HSTracker
correct a crash if the game is started before HSTracker

ifeherva/HSTracker,jonnguy/HSTracker,mattwelborn/HSTracker,jonnguy/HSTracker,mattwelborn/HSTracker,jonnguy/HSTracker,zeptolee/HSTracker,bmichotte/HSTracker,ifeherva/HSTracker,zeptolee/HSTracker,mattwelborn/HSTracker,mattwelborn/HSTracker,bmichotte/HSTracker