SIMPLE way to restart flows within Node-Red

[E1cid]

You can catch the alexa node error/s using the catch node, and reinitialise the alexa authorization.
There is a example of how to initialise the authenication in the read me help info.
(this answer assumes you are using one of the alexa remote2 forks)
here's a link to a thread that talks about alexa node issues.