What happened to the graphics that linked to our stats???

This is the url I have been using forever to generate a signature graphic (PNG) of my stats summary and now it's invalid/not showing any stats.
http://boincstats.com/signature/-1/user/2355328/3/sig.png

:

Your user ID shows as 206514330886, so has that changed, or been changed by the site? Don't know what triggers that to change.

This works: https://www.boincstats.com/signature/-1/user/206514330886/sig.png

Several user IDs have changed.
Whoever has a signature which looks like the one in the first post has to look up their new signature.
If you use hard links to your favourite Boincstats pages you might run into related issues.

Sorry for reviving a quite old thread, but it seems that there is a bug in BOINCStats itself and the system does not generate correct links to the signature.
Have a look at my situation:
If you look for my account (katoda), the system presents you with two positions:
"BOINC combined" https://www.boincstats.com/stats/-1/user/detail/212611867638/projectList
"BOINC combined without ASIC" https://www.boincstats.com/stats/-5/user/detail/189679133682/projectList
Each of them consists of two projects: "BOINC combined" and "World Community Grid".
Stats graphics links for both "BOINC combined" projects are correctly generated, however User ID visible on the statistics page and used in the stat graphics link is different for each of them - but I guess this is how the system works
https://www.boincstats.com/signature/-1/user/212611867638/sig.png
https://www.boincstats.com/signature/-5/user/189679133682/project/sig.png
The problem starts when you check "World Community Grid" projects. Both leads to the following statistics page
https://www.boincstats.com/stats/15/user/detail/352910
and the link to statistics presented at the bottom of the page is incorrect
https://www.boincstats.com/signature/15/user/23570/project/sig.png
and of course the graphics generated says "invalid id".
Even if I manually try to correct the link, replacing 23570 with the User ID visible in the statistics (352910) I got the same error message.
What could be done to fix this situation?