Error after step 7

[xtremevision]

Hi, please see screenshot. We've migrated Magento 1.9.3.1 to 2.1.7 and PHP 7.0.11. Thanks, Michael.

[UberthemeTeam]

Hi Michael,

Thanks for working around with our migration script here at Github.

It's pity that this script was outdated and not maintained for long. It has been replaced with a newer Pro version which is fully compatible with the latest Magento 2.2.6 as well as supports PHP 7. You can take a look at the latest revamped Pro version here.

We're biased when referring you to our Pro version, however it definitely saves you pretty much time.

Sincerely,
Ubertheme team