We just installed WPMU Wordpress User Sync on the "Sub site" with no problem (dev.mpsservices.be).
When I try to install it on the master site (www.mpsservices.be)... I have an error.
You can see it in attachment.
I just want to synchronize the users of mpsservices.be to our new wordpress (dev.mpsservices.be).
Could you fix that or tell me how I can do.
Thanks in advance.