Please insert disc DURING installation for various stuff packs.

Hi, so after many issues with my sims game before, not launching ect i decided to completely uninstall all of the games, including the ones i had actually brought and start over from scratch.

I have installed base game and all the games i own, master suite stuff, showtime, and fast lane stuff, im now trying to install all other expansions and stuff packs but when trying to install diesel stuff it asks me to insert a disc after entering the code, also tried to install sweet treats since i though it might be an error with my download, but im getting the same issue.

do i need to install all the games in a certain order? or have i just gone wrong somewhere?

thanks

ok im now downloading the stuff packs again, since they were ones i had saved on an external and may of got a bit jumbled on the way. 

i have just installed some expansions and the movie stuff pack and they installed fine, but when starting the game im receiving an error saying 

''it looks like you have installed an unofficial game modification that does not match your current version of the sims 3. we recommend you either uninstall these game modifications or get updated versions of them - otherwise you may experience crashes or significant bugs. quit or continue. 

it runs if i press continue but the menu is blank and you cant play the game.