Single sign on plugin preventing access?

[Sarah L]

We have a fairly urgent issue with our SSO plugin as we're getting this error message across the board, even for admins: Error code: 2SSO129/1

This seem to be connected to the plugin but I don't have the technical knowledge to figure out what and our website devs won't help because it's to do with Invision.

I managed to get into the admin section and got this message also:

How do I check if a plugin needs updating/renewing? I contacted the plugin owner about a separate issue last week but haven't had a reply about this yet.

Any advice in the meantime would be enormously appreciated. Thanks.

[stoo2000]

I replied to your PM, but for anyone else reading this.

The account creation is being blocked by the Spam Defense service -