Can I remove the APP from TestFlight and upload a new one if I found there is a critical bug in my APP?

I have uploaded my APP to APP Store Connect and also submit my APP for TestFlight. However, I found there is a critical bug in my APP during the testing. Could I remove the APP from TestFlight and upload a new one? How to do that?
Can I remove the APP from TestFlight and upload a new one if I found there is a critical bug in my APP?
 
 
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