Hi @natallia.dyer,
Katalon may have lost the link to the data file, so do the following on Windows.
- Quit Katalon.
- Backup your project using Git or some other archiving tool.
- Using the Windows ‘File Explorer’ open the folder where the data file is stored.
For example: C:\Users\JohnDoe\ProjectName\Data Files\FolderName\dataFile - Delete the dataFile.
- Open Katalon.