Hi there! I’d like to get a bit more detail to help you properly. When you say the Acellus app crashes while typing JavaScript code after some lines, are you working in a specific coding environment within the app, like a text editor or a code input box? Also, does the app just freeze, close completely, or show any error messages when it crashes?

Meanwhile, here are a few initial things we can check that often help:

1. App Version: Make sure you’re running the latest version of the Acellus app since older versions can have bugs causing crashes. You can check for updates from the source where you downloaded it.

2. System Compatibility: Since your device runs Windows 10, confirm that your system meets the minimum requirements for the app and that your OS is fully updated.

3. Restart and Clear Cache: Sometimes, app crashes happen due to temporary glitches. Try closing the app completely, restarting your computer, then opening it again. If there’s an option to clear cache or temporary files inside the app, that can help avoid corrupted data causing crashes.

4. Check for Conflicts: If you have any antivirus or security software, temporarily disable it to see if that stops the app from crashing while coding.

If you’ve tried any of these already, please let me know, and we can move on to a more detailed step-by-step approach to diagnose this issue.

Are you satisfied with starting here, or would you like me to help guide you through any of these steps?