NordLocker bounty campaign

Hello. It's cryptography related because NordLocker is an encryption software so I'm posting it here. Anyway, they're doing a bounty on a folder that's encrypted with their software and I was wondering - how likely do you think are they to get cracked? They're using ECC cryptographic algorithms and the XChaCha20-Poly1305 cipher suite so it doesn't seem weak in any way, but maybe their implementation is flawed in some way. But the reward is only ten grand so maybe no one will bother for such an amount.