no answer from concrete5.org at step "Prefetching information" in installation

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There is no answer from concrete5.org at step "Prefetching information" in installation
also community connection has the same problem
server IP 195.208.1.108

 
kuranina replied on at Permalink Reply
I have connection with https.
Where can I find concrete5 cURL function to correct it?
InfiniteSandwiches replied on at Permalink Reply
I had this same problem. The problem was that I accidentally removed read permissions from my files, config, and packages directories when I made them writable.