Large Library and Error 504

Hi,

I am willing to transfer my library that is composed by 60k files (mostly pictures).
The setup was very smooth, but when it comes to the transfer in itself, error 504 blocks the transfer before it even reaches 1% of the overall library…

Do you have any recommendation? I am now trying to use GCP console, but I am wondering whether the connection between my website and the bucket in Google Cloud Strorage will still work.

Thanks in advance for your help.

Maxime
crushonapp.com