Hi BeeBeeBeeBee ,
Welcome to the Buttonizer forums!
Was Buttonizer crashing or the site itself?
If it was Buttonizer that was crashing, Could you perhaps send us the crash report? It might help us find out what's causing the issue. 😄
If it was the site that was crashing after enabling Buttonizer, could you perhaps check the PHP logs if there are any errors?
Thanks in advanced!