Fatal error: Nesting level too deep?

Can someone please shed some light on what this error message means?

"Fatal error: Nesting level too deep - recursive dependency? in E:\Domains\mydomian.co.uk\wwwroot\forums\vbseo.php on line 89"

Hello,

when do you get this message?

Sometimes when replying to PMs.

Looks like you are running vBSEO 3.3.0 RC2, please try upgrading to 3.3.0 release.

Ok, will do. I couldn't see any installation instructions - can you point me to them?

They are included in readme.html file in vBSEO package ("do not upload" folder).

A quick note then; if you allow the ActiveX control to run on the page, you can't see the instructions.

Thanks.

I've installed this to the letter up to step D - now I can't get into my AdminCP.

IISPassword
The page cannot be displayed There is a problem with the page youare trying to reach and it cannot be displayed. It is most likely that configuration files for this url are corrupted.

Ignore my last. Fixed.

I now can't upload the 'crawlability_vbseo.xml' file in Manage products. All I get is: "No file uploaded and no local file found".

.

imported locally...

Now it's still showing RC2...

Where is it showing the RC2? In the admincp, or vbseocp.php?

Seems to be updated now after trying several times. Phew, what a day...

Thanks.

Glad everything is working now!

We'll test and see if the 'deep nesting' issue is fixed now. I still fail to see how an older version made this happen - everything's been running just fine for nearly a year now.