valid Module instance, hasValidInstance function

[Arjuna MIPS]

Hello,

I am trying to install a module, but $this->disk->getBoolean('is_valid') is returning false.
The module had been installed on other Prestashop website.

Any idea why this is returning false?

Kind regards,

[Arjuna MIPS]

I am getting this issue in /src/Adapter/Module/Module.php
in the function  public function hasValidInstance()
line 199