[SalesForce] Self registration error message

I want to implement a self registration process for communities. The problem is when I submit my entries in the registration form, the error message

"Your request cannot be processed at this time. The site administrator has been alerted"

is displayed.

I know that there are solutions in the web. One of them I think is very helpfull:

http://carvingintheclouds.blogspot.de/2014/09/your-request-cannot-be-processed-at.html

For the first, the third and the last problem I did the necessary steps to solve them. But I'm not sure what to do to solve the second problem.

"
The Account Owner does not have a User Role assigned. If you're creating a new Account record on the fly, especially in B2C situations, you need to make sure you assign a default account owner that also has a User Role value. Any role will do, and you can use either a workflow rule or Apex to perform the assignment."

Can anybody help me what I have to do in detail? I use a dev org with me as account owner.

Thank you very much!

Best Answer

Your user need to be assign a role. So go to User> select your user > Edit and i Role give it any role(eg CEO) Then Save it.

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It will solve your problem