backup + disable
FILE=/usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js
cp -a "$FILE" /root/proxmoxlib.js.bak
sed -i '/res === null/,/res\.data\.status\.toLowerCase() !== '\''active'\''/c\ false' "$FILE"
systemctl restart pveproxy
PR Proxy Bar @proxy_bar · 21.6K subscribers 
FILE=/usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js
cp -a "$FILE" /root/proxmoxlib.js.bak
sed -i '/res === null/,/res\.data\.status\.toLowerCase() !== '\''active'\''/c\ false' "$FILE"
systemctl restart pveproxy