api sandbox failure

i am getting a  Possible infinite loop detected, shutting any idea why or how to find the issue?

I got it yesterday when I used my Library game for the first time since last week's troubles. It went away when I disabled all the scripts and then re-enabled them in the order of importance, e.g., TokenMod, then ScriptCards. Then when I restarted the whole sandbox, the error message was gone and everything was enabled again. I don't think any of the scripts were at fault, something needed cleaning up by the process I used. 

ok thanks ill try