Error during 7.12 -> 8.2.0 Migration command

Hi Team, need your help. I am trying to migrate from SCRM 7.12.7 to 8.2.0 Version by using the migration package " SuiteCRM-8.2.0-7.12-migration.zip".

I followed the steps described in the respective upgrade guide, but when trying to execute the migration command i get the following error message. Does someone experience the same yet or would someone know how to solve this?

PHP Version is 7.3.33 and Ubuntu 18.04.6

Thanks a ton!

SJN

Can someone help me with this? I can confirm that in the 7.12. instance the connection to the database is working. Not sure why the migration package is not able to find it.