After ESET released new version of ESSP (14.x.x) on 1 december You can't open Password Manager v2 becouse ESET have switched off services required to work Password Manager v2.
If you have not previously exported your data to xml format (which contradicts of using password manager because it is unsafe) from Password Manager v2, you don't have access to your data at the moment, even though you probably have local copies of data in * .spdb format and ESET has copies of this data in the cloud.
It is true that on the ESET website https://help.eset.com/password_manager/3/en-US/password_manager_upgrade.html
You can find upgrade instructions to v3, but unfortunately the data that is being migrated by ESET is corrupted and unusable and as I wrote above export to xml from PWM v2 is impossible after 1 december.
Here you can read reviews of users who have a similar problem: https://chrome.google.com/webstore/detail/eset-password-manager/khhapgacijodhjokkcjmleaempmchlem
I reported this problem to ESET on 2 december - till now I don't have any solution.
It seems that ESET don't care much about user data ...