Problem: A classic Contribute 3 Unknown Error message mysteriously disables a connection that was previously working.

“Contribute has disabled your connection to this website because an unknown error occurred. For more information contact this website’s administrator.”

Solution: According to Adobe’s Contribute Knowledge Base (Macromedia was bought by Adobe recently which can be a bit confusing) the error is caused by a corrupt hub file that resides on the server. Nifty huh? To fix this error you need to remove that hub file.

IMPORTANT: Removing this file is necessary BUT it will remove you as an administrator and all other users from the server’s master list. This is not a huge issue because all of their settings remain valid and they merely need to click “Connect” and then “Next” to reconfirm all of their settings and recreate their entry in the server’s hub file. This is important to remember, though, because if you are in a larger organization; you will need to do some preemptive education so your users do not panic.

To remove this file:
1) Connect to the server (through FTP, local, etc)
2) Browse to /_mm/
3) Locate the cthubXXXXX.csi (XXXXX is a random string unique for each installation) and back it up to your local drive
4) Now that you have a safe copy, Delete the hub file

This should take care of your “Contribute has disabled your connection to this website because an unknown error occurred. For more information contact this website’s administrator.” Contribute error.

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