Dont know if im alone but i cant find anybody else.. when i click -> Our Models everything is fine but when i choose a model, i got Error code 500 ''Please wait a minute and click on Refresh to try again
If this error persists, contact the support'' and it takes few day already.. :D thanks for answers :)

I had that last night and previously as well.

It seems to me that if you are using the website and leave it running but don't actually use it for awhile, it goes dormant and forgets that you are logged in.

I often look at the forum from my phone or Kindle tablet and if I don't specifically close the browser when I am done this will sometimes happen to me.

I had to close my browser and then re-open it and log in again for that to go away.

Once I did that, everything seemed to be ok.

i have the same. in every browser and device

Well i do not close my browser sometimes or logging out but re-opening and re-logging doesnt fix the problem.. i guess i contact the support :/

You certainly can contact support, especially since you don't seem to be the only one with the issue.

I find I only have this issue using my phone or tablet (Both android devices) and not with my P.C.

However I usually use the software GUI when on the P.C. so maybe it doesn't happen through that method.

I use the "close all" command on my phone/tablet to make sure the programs actually shut down all the way and then restart them which seems to fix it for me.

Good luck, Sir!

I posted a note about the Error 500 on the web page in "Bugs and Fixes" yesterday.
The problem was fixed (for me, at any rate) by Totem today.

Yeah it is working to me aswell :D dont know if they did something or it fix themselves :D but its working :) thank :D