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[Errno 13] Permission denied: '/opt/bitnami/apps/erpnext/htdocs/frappe-bench/logs/bench.log'

This error appears when I write bench - version. this writes : [Errno 13] Permission denied: ‘/opt/bitnami/apps/erpnext/htdocs/frappe-bench/logs/bench.log’

can you help ?

If it’s a permission error then try using CHOWN or CHMOD.

example for CHMOD:(Take note that chmod 777 is not the best practice)
sudo chmod 777 /opt/bitnami/apps/erpnext/htdocs/frappe-bench/logs/bench.log