Thank you very much, I think I found the problem. The data in line 300 seems to be incorrect. Should I delete the content below line 300?
On the left is docker logs, and on the right is the content of "cat -n /etc/nginx/conf.d/include/ip_ranges.conf".
I entered docker, deleted the content after 300 lines, nginx worked normally, but whenever I restart nginx, the content of this configuration file will be updated again, and then the above error appears, I think this should be abnormal. I don't know if I should report this problem, it seems that only I encountered it, or I need to write a script to modify the configuration file whenever nginx starts.