First of all, I would like to thank all members and team who cared to help me in upgrading from 1.1 RC3 to 1.1.21
Now I am getting the same errors when trying to upgrade to 2.0.x or 2.1.x - tried all of them and the process stops always at 45% after adding the hash file and before converting the serialized strings, as demonstrated in the previous topic.
Tried also all possible combinations with PHP and MySQL but the problem is not there, neither is it in the cPanel or CWP.
Added also serialize_precision to php.ini - no effect. Always getting this image