I Can’t Complete SunExpress Check-In Due to "PSS Operation Exception" Error

I'm experiencing a technical issue with SunExpress Airlines’ online check-in system. I’ve entered all my information correctly, double-checked each field, and followed every step of the process. However, right at the final step, I keep receiving a “PSS Operation Exception” error that prevents me from completing my check-in.

I’ve even tried using multiple devices—smartphone, tablet, and laptop—but the same error occurs every time. This has never happened to me before, and I fly frequently. Everything from my flight number to personal information is entered exactly as required, yet the system won’t allow me to proceed.

It’s extremely frustrating and stressful, especially when you’re trying to check in ahead of time to avoid airport delays. I kindly request that SunExpress look into this system error immediately and help me complete my check-in successfully. A clear explanation and a timely solution would be greatly appreciated.