The URL for this project is case-sensitive and should be :
http://MindModeling.org/beta/
Manager complains in message tab, but all works fine with lower case URL.
Yes, I am having this same problem. Unfortunately--perhaps because of gridrepublic?--I am unable to "detach" from the project to try to reset it to the 'correct' URL.
Should I use, in GR, the Remove button (on the Projects tab, Edit subtab)? Unfortunately, I am not really sure what the consequences are of removing it from all computers ("This will stop work on this project on all your computers"...). (I don't even recognize some of the computers there, as an additional wrinkle.)
Ok, let's take your issues one at a time --
As a consequence, you cannot make the "wrong URL" message in your error log go away (except by stopping work on the project: ie, removing it permanently from your project list).
But I should re-emphasize that in this case the "wrong URL" message is of no functional consequence: it is not affecting your computer nor its ability to work on the project, nor is it affecting the project. It is just a weird little quirk that we'll fix when we next update the project list.
Bottom line: no need to worry about this issue.