“Invalid memory address or nil pointer dereference” error
There are a number of reasons, most commonly, an API may have been configured incorrectly in some way (for instance, it may have been set up without an organisation). The error itself is a specific to Go language which Tyk was written in and could also suggest that alterations made to the code by the user could also be the culprit.
Make sure that API definitions are set up correctly. Information on how to do this in Tyk REST API can be found in the following links: