The browser crash or failure to open may be caused by the following reasons:

1. Program crash or installation issue: If the browser installation was corrupted or incomplete, try downloading the latest version and reinstalling the software.

2. Program extraction incomplete: If the browser files have not fully extracted, it may crash when launched. Wait for the extraction to complete and restart the browser.

3. Insufficient system resources: High CPU or memory usage may prevent the browser from launching. Check the system's resource usage and close unnecessary programs.

4. Software conflict: Other software may conflict with SupLogin, causing the browser to fail to start. Close unrelated programs or try running the browser in safe mode.

5. Configuration issues: The browser configuration may be corrupted. Try resetting or clearing the browser settings.

6. Compatibility issues: The browser may not be compatible with certain versions of the OS. Ensure the browser version matches your OS.

7. Virus or malware: Malware could interfere with the browser's operation. Run a virus scan to ensure system security.

8. Plugin or extension conflict: Certain plugins or extensions may be incompatible with the browser, causing crashes. Disable or uninstall problematic plugins/extensions.

To resolve these issues, consider reinstalling the software, checking system resources, clearing configurations, closing unnecessary programs, or updating both the browser and operating system.

If the issue persists after trying the above methods, please reach out to customer support.