Good job in making your way to level 7! You should be better in using the find command to look for useful information now.
Level goal: The password for the next level is stored in the file data.txt next to the word millionth
This level is actually very simple and has a lot of ways to do it. Personally, I would prefer to simply cat the file and then grep the keyword mentioned in the hint, “millionth“.
bandit7@melinda:~$ cat data.txt | grep millionth millionth cvX2JJa4CFALtqS87jk27qwqGhBM9plV
There, you got it! The password to gain access to the next level is cvX2JJa4CFALtqS87jk27qwqGhBM9plV.