Unable to seek to offset on file

32 bit PHP does not support files larger than 2GB. To migrate files larger than 2GB you will need to install PHP 7 64bit from PHP’s official website: http://php.net/downloads.php
If your file is less than 2GB, the error could have occurred because the file has not been downloaded fully. Please try and download it again.
Another cause of this error can be because there not enough disk space on your computer.