Nginx Proxy Manager Update Error

[ethan-hgwr]

✅ Have you read and understood the above guidelines?

yes

🔎 Did you run the script with verbose mode enabled?

Yes, verbose mode was enabled and the output is included below

📜 What is the name of the script you are using?

Nginx proxy manager

📂 What was the exact command used to execute the script?

update

⚙️ What settings are you using?

• Default Settings
• Advanced Settings

🖥️ Which Linux distribution are you using?

Debian 12

📈 Which Proxmox version are you on?

pve-manager/9.1.6/71482d1833ded40a (running kernel: 6.17.13-2-pve)

📝 Provide a clear and concise description of the issue.

Updating the Nginx proxy manager lxc fails.

🔄 Steps to reproduce the issue.

1. Go in the lxc'shell
2. Type and run the update command
3. Wait for "Building OpenResty" step

❌ Paste the full error output (if available).

Failed to restart openresty.service: Unit openresty.service is masked.
  ✖️   in line 96: exit code 1 (General error / Operation not permitted): while executing command systemctl restart openresty

  --- Last 20 lines of log ---
[2026-03-28 16:08:18] [INFO] Removing legacy nvm installation
[2026-03-28 16:08:18] [OK] Legacy nvm installation removed
[2026-03-28 16:08:22] [INFO] Setup Node.js 22
[2026-03-28 16:08:34] [OK] Setup Node.js 22
[2026-03-28 16:08:35] [INFO] Installing yarn@latest
[2026-03-28 16:08:36] [OK] Installed Node.js modules: yarn
[2026-03-28 16:08:36] [INFO] Migrating from packaged OpenResty to source
[2026-03-28 16:08:40] [OK] Migrated from packaged OpenResty to source
[2026-03-28 16:08:44] [INFO] Checking for update: openresty
[2026-03-28 16:08:44] [OK] Update available: openresty not installed → 1.27.1.2
[2026-03-28 16:08:45] [INFO] Fetching GitHub release: openresty (1.27.1.2)
[2026-03-28 16:08:46] [OK] Deployed: openresty (1.27.1.2)
[2026-03-28 16:08:46] [INFO] Building OpenResty
[2026-03-28 16:10:09] [ERROR] in line 96: exit code 1 (General error / Operation not permitted): while executing command systemctl restart openresty
  -----------------------------------

 📋 Full log: /tmp/create-lxc-9c554d4a.log

🖼️ Additional context (optional).

No response

[MickLesk]

And more? Service Output?

[ethan-hgwr]

The logs/service output do not show anything abnormal. However, before updating I checked the status of the OpenResty service and it wasn't masked which tells me that the update script masks it. I then updated NPM, got the error metionned above then ran systemctl unmask openresty and re-ran the update and it fixed the issue.

[Maxter3185]

Hi, had the same issue and came here where I found what @doge0420 did to work around it. That worked for me too, so thanks!

[Paerrin]

Had the same issue. My logs have a little more info so I pasted them below. Can confirm the unmask command @doge0420 works to let you run the update again and have it complete.

⠋ Building OpenRestyFailed to restart openresty.service: Unit openresty.service is masked.
  ✖️   in line 96: exit code 1 (General error / Operation not permitted): while executing command systemctl restart openresty

  --- Last 20 lines of log ---
test -f '/usr/local/openresty/nginx/conf/scgi_params' \
        || cp conf/scgi_params '/usr/local/openresty/nginx/conf'
cp conf/scgi_params \
        '/usr/local/openresty/nginx/conf/scgi_params.default'
test -f '/usr/local/openresty/nginx/conf/nginx.conf' \
        || cp conf/nginx.conf '/usr/local/openresty/nginx/conf/nginx.conf'
cp conf/nginx.conf '/usr/local/openresty/nginx/conf/nginx.conf.default'
test -d '/usr/local/openresty/nginx/logs' \
        || mkdir -p '/usr/local/openresty/nginx/logs'
test -d '/usr/local/openresty/nginx/logs' \
        || mkdir -p '/usr/local/openresty/nginx/logs'
test -d '/usr/local/openresty/nginx/html' \
        || cp -R docs/html '/usr/local/openresty/nginx'
test -d '/usr/local/openresty/nginx/logs' \
        || mkdir -p '/usr/local/openresty/nginx/logs'
make[2]: Leaving directory '/opt/openresty/build/nginx-1.27.1'
make[1]: Leaving directory '/opt/openresty/build/nginx-1.27.1'
mkdir -p /usr/local/openresty/site/lualib /usr/local/openresty/site/pod /usr/local/openresty/site/manifest
ln -sf /usr/local/openresty/nginx/sbin/nginx /usr/local/openresty/bin/openresty
[2026-03-29 08:15:28] [ERROR] in line 96: exit code 1 (General error / Operation not permitted): while executing command systemctl restart openresty
  -----------------------------------