Delete the directory cache/upgrades/temp and try again.
Also, look for other posts here in these forums where that directory is mentioned, there were several upgrade problems that were very discussed here some time ago.
Searching in the forum, I have see many permission related problems; on my windows server platform, I have given full-access permission to the main folder and every file and subfolders.
I deleted the cache\upgrades\temp folder, which is re-created when you start the upgrade wizard; it contains just the zero-byte lenght file upgrade_progress.php
in php_errors I noticed the error
[23-Aug-2022 07:36:25 UTC] PHP Fatal error: Uncaught Error: Cannot use object of type SplFileInfo as array in C:\CRM\www\suitecrm\include\utils\file_utils.php:57
so I found this problem on the forum
and I fixed the Upgrade Wizard installing the patch of the 7.11.14 release
and I get the Wizard working.
Thank you
Now I try to upgrade