XF 1.3 Editing thread from thread view and getting error about Search?

[surfsup]

I have edited a title and getting this error, file attached.
*Please note that the suicide thread is regarding bio-hazard cleanup as we are a cleaning+restoration forum, so dont flip

Running 1.3.2 and enhanced search 1.0.3

 

[Paul B]

I suspect this is add-on related.

Do you have any add-ons installed related to threads such as similar titles?

 

[surfsup]

I havnt installed any new addons for weeks......We cant even reply to threads or create new ones.

I am running similiar threads

 

[surfsup]

just disabled it and now it works, thanks Brogan. So strange because today is the only day it happened.....out of months...

 

[Paul B]

I am running similiar threads

Disable that add-on and see if the problem stops.