Hearts not refilling

Question

I'm trying to refill my hearts but it won't let me, i can't access all my courses because of it.
Please help

Answer 1

Time must pass before hearts are replenished. You can also buy from for qubits. If you can't, check the number of qubits. If everything is ok, clear the app cache. Then restart your device and try again. If it does not help, write to the sololern support service

Answer 2

Having the same problem, going to wait five hours and see what happens but I have over 700 bits.

Answer 3

Have the same problem rn, i have over 1000qubits and can't use them to refill my hearts, i was finishing my javascript course and now i can't until they refill again.