That's a workmanship issue, not fragility. The time delay involved is for the warming up and subsequent cooling back to operating temperature. It's unfortunate, yes, to have such time lost for what is a relatively simple fix. Hey, it will just delay the black hole that destroys Earth a few months, that's all.
And it sounds like it would be shut down either way over winter
meaning the collider cannot be restarted until spring, after its mandatory shutdown due to high electricity costs during the winter.
So, it's a setback. Costly and unneccessary, yep. Although... if there's one thing I've learned from science fiction (ever see the movie Contact?), what are they doing with the other undisclosed collider? "first rule of government spending... why have one if you can have two at twice the cost?"
I've been following the news on the LHC with passive interest, I guess that interest can go on hold until spring.