Vtiger permission

Sup reddit. Im a trainee and i got the task to set up our crm. Get used to it and set up basic roles and rules. My problem now is that i cant test user guidelines as my non admin groups cant see anything listed. No contacts, services, products, sales. And i need to setup permissions. I probably know the solution. Vtiger 7.4.0 and many posts say something about missing data base files to regulate the rules. But he doesnt want to immediately do it and wants me to tet familiar. Which i think i am after 6 hrs of testing around as an admin. My question isnig thats the problem or if there are other things. And how hard would it be to back up the databae of vtiger and execute sql commands!