Issue Cloning issues

[Netgen]

I have notice that tried to clone two times two different wordpess websites but have strange errors, also when im on home page sometimes turns on plesk default index!!!
look the errors :

 

[Fabian H]

First of all, don't give any thoughts to the errors in the console on the plesk's default page.
If it is shown, there was something going wrong whilst cloning.

Which errors was shown up in plesk after trying to clone the wp website?
Are the files of wordpress copied into the new domain/subdomain folders?