QC 3.0 does not work anymore

I purchased this back in 2017 and it worked great. Until recently, the QC port begin to malfunction. At first, my phone does not use fast charging anymore, just normal charge. I tried it with another charger and it uses quick charge. Didn't care much about it until yesterday, where the QC port just stop working. I expect Anker's product to last longer than this

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