Hey, it looks like you've used over the 50 tpe that you start out with, make sure to follow the upate scale
Update Scale:
0-50 - costs 1 TPE to go up 1 point
51-70 - costs 2 TPE to go up 1 point
71-80 - costs 5 TPE to go up 1 point
81-90 - costs 10 TPE to go up 1 point
91-100 - costs 15 TPE to go up 1 point
Update Scale:
0-50 - costs 1 TPE to go up 1 point
51-70 - costs 2 TPE to go up 1 point
71-80 - costs 5 TPE to go up 1 point
81-90 - costs 10 TPE to go up 1 point
91-100 - costs 15 TPE to go up 1 point