#4664 Invalid Sub Format. Re-import or delete.

The error "Invalid Sub Format. Re-import or delete." typically occurs when the software cannot parse the subtitle file you are trying to import. This may be due to:

• The file is not in a supported subtitle format (e.g., .srt, .ass, .vtt).
• The subtitle file contains formatting errors (e.g., missing timecodes, incorrect line structure).
• The file encoding is incompatible (should be UTF-8 without BOM).
• The file is corrupted or empty.

However, based on the provided knowledge base, there is no specific troubleshooting for this exact error message. To give you the most accurate guidance, I need more information from your logs.

Please provide the following:

1. Open the logs folder in your software installation directory (C:/Users/Ahmet/Downloads/win-pyvideotrans-v3.98-312/logs/).
2. Find the latest log file (named by date) and copy the last ~30 lines of error details.
3. Share that content here.

Alternatively, you can try these general steps:

• Ensure the subtitle file is a plain text .srt file with proper format (e.g., 1\n00:00:01,000 --> 00:00:04,000\nHello world.\n\n).
• Re-save the .srt file using a text editor like Notepad++ with UTF-8 (without BOM) encoding.
• Delete any extra spaces or special characters in the file.
• If the file was generated by another tool, try regenerating it with pyVideoTrans's own subtitle export.

If the issue persists, the log will help pinpoint the real cause.