ncspot fills the terminal with control codes sequences

**Describe the bug** I think a screenshot might be the best option here, please see the screenshots section. But as the title says, ncspot fills the terminal with control codes (escape sequences) and presumably crashes (or at least does not end up having a PID). The apparent cause seems to be nonsupport for free accounts based on output of `$ ncspot -d ncspot.log` though this may be a red herring. **To Reproduce** I'm not sure this is actually reliably reproducible on other machines Steps to reproduce the behavior: 1. Start ncspot for the first time 2. Follow instructions (navigate to both URLs to link ncspot) 3. ncspot misbehaves 4. subsequent restarts should also exhibit the behaviour **Expected behavior** Expected it to not break the terminal by sending ceaseless (bordering on malicious) spam and to instead give a sensible error output describing the issue. **Screenshots** <img width="1142" height="1843" alt="Image" src="https://github.com/user-attachments/assets/00057427-9b20-46c5-af66-c254143048b1" /> **System (please complete the following information):** - OS: Linux [arch linux 6.19.6-zen] - Terminal: urxvt 9.31 - Version: 1.3.3 - Installed from: arch linux extra repository. **Backtrace/Debug log** [ncspot.log](https://github.com/user-attachments/files/25892774/ncspot.log) I may provide a backtrace later, but the version currently installed does not support it and I do not have the time right now.