Fix 'nginx cannot read file permission denied' Error - Fix PyCharm Virtual Environment Not Activating-Resolve 522 Error with DNS-Only Mode in Cloudflare

Updated 2026-07-28 06:25:00cloud-software
Fix 'nginx cannot read file permission denied' Error - Fix PyCharm Virtual Environment Not Activating-Resolve 522 Error with DNS-Only Mode in Cloudflare
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.