Need help with error 504

i have tried last 3 days manually or trough oneclick install getting the demopage but i always end up getting errors.

when manually i try upload the xml file it wouldnt upload certain stuff for whatever reason.

i contacted support to increase memory which i assume they did to 128mb but still error

please if you need my login infos for wp or my server let me know and i will post it later on, just need tell me how to make a post private i looked but i cant see it so far