SSL certificates page lists some certificates as expired

[nathcoad]

Describe the bug
Just upgraded docker image from 2.7.1 to the latest (docker-compose pull; docker-compose down; docker-compose up -d).
When logging in I notice the SSL certificates page lists a number of certificates as expired, with an expiry date in the past. However, running certbot renew inside the image shows that the certificates are not due for renewal, and I have confirmed that the sites proxied have valid certificates that expire in the future.

Nginx Proxy Manager Version
2.9.3

To Reproduce
Steps to reproduce the behavior:

1. Go to SSL Certificates page
2. See certificates listed as expired
3. Run "docker exec -it nginx-proxy-manager_app_1 certbot renew"
4. See output processing all npm-N.conf files and indicating that the certificates are not due for renewal yet

Expected behavior
SSL Certificates page should match certbot renew command

Screenshots

Operating System
Ubuntu 18.04.5 LTS

Additional context
$ docker version
Client: Docker Engine - Community
Version: 19.03.13
API version: 1.40
Go version: go1.13.15
Git commit: 4484c46d9d
Built: Wed Sep 16 17:02:59 2020
OS/Arch: linux/amd64
Experimental: false

docker-compose.yml file:

version: "3"
services:
app:
image: 'jc21/nginx-proxy-manager:latest'
restart: always
ports:
# Public HTTP Port:
- '80:80'
# Public HTTPS Port:
- '443:443'
# Admin Web Port:
- '81:81'
environment:
# These are the settings to access your db
# DB_MYSQL_HOST: "db"
# DB_MYSQL_PORT: 3306
# DB_MYSQL_USER: "npm"
# DB_MYSQL_PASSWORD: "npm"
# DB_MYSQL_NAME: "npm"
# If you would rather use Sqlite uncomment this
# and remove all DB_MYSQL_* lines above
DB_SQLITE_FILE: "/data/database.sqlite"
# Uncomment this if IPv6 is not enabled on your host
# DISABLE_IPV6: 'true'
volumes:
- ./data:/data
- ./letsencrypt:/etc/letsencrypt
networks:
- reverseproxy-nw

networks:
reverseproxy-nw:
external: true

[chaptergy]

Duplicate of #792