PR_CONNECT_RESET_ERROR can't access via Browser without reason

Hello,

I’m asking you for help because I’ve been on this problem for days.
Overnight I can no longer connect to my Nextcloud for no particular reason. I mean I didn’t do anything to get there.

when I type my address in https I get a PR_CONNECT_RESET_ERROR, and when I type in http I get 404 not found.

I first suspected a problem with let’s encrypt but I manage to access Webmin on port 10000 with the same certificates as my Nextcloud.

I think it’s a problem with Nginx but I’m not expert enough to debug alone.

I am under Nginx 1.21.0 and under Nextcloud 20

If someone will help me because I am desperate.

Thank you so much.

Nobody can help me ?

See my nginx log :

[/var/log/nginx] 15:59:56 :tail error.log
2021/06/14 15:14:30 [notice] 8943#8943: signal 29 (SIGIO) received
2021/06/14 15:14:30 [notice] 8943#8943: signal 17 (SIGCHLD) received from 9344
2021/06/14 15:14:30 [notice] 8943#8943: signal 17 (SIGCHLD) received from 9345
2021/06/14 15:14:30 [notice] 8943#8943: worker process 9345 exited with code 0
2021/06/14 15:14:30 [notice] 8943#8943: signal 29 (SIGIO) received
2021/06/14 15:14:35 [error] 9431#9431: *3 open() “/usr/share/nginx/html/login” failed (2: No such file or directory), client: 92.184.100.124, server: localhost, request: “GET /login HTTP/1.1”, host: “maouu-cloud.com
2021/06/14 15:14:35 [error] 9431#9431: *3 open() “/usr/share/nginx/html/favicon.ico” failed (2: No such file or directory), client: 92.184.100.124, server: localhost, request: “GET /favicon.ico HTTP/1.1”, host: “maouu-cloud.com
2021/06/14 15:14:58 [error] 9431#9431: *4 open() “/usr/share/nginx/html/login” failed (2: No such file or directory), client: 92.184.100.124, server: localhost, request: “GET /login HTTP/1.1”, host: “maouu-cloud.com
2021/06/14 15:14:58 [error] 9431#9431: *4 open() “/usr/share/nginx/html/favicon.ico” failed (2: No such file or directory), client: 92.184.100.124, server: localhost, request: “GET /favicon.ico HTTP/1.1”, host: “maouu-cloud.com
2021/06/14 15:29:51 [error] 9431#9431: *7 open() “/usr/share/nginx/html/robots.txt” failed (2: No such file or directory), client: 54.36.148.69, server: localhost, request: “GET /robots.txt HTTP/1.1”, host: “e-wally.com
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