# Paperless doesn't start

**URL:** https://forum.yunohost.org/t/paperless-doesnt-start/41144
**Category:** Support apps
**Tags:** paperless-ngx, english
**Created:** [December 23, 2025, 10:48am UTC](https://forum.yunohost.org/t/paperless-doesnt-start/41144 "2025-12-23T10:48:23Z")
**Posts on this page:** 1
**Showing post:** 16

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### Author: ![jedie](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/j/b5a626/32.png) [@jedie](https://forum.yunohost.org/u/jedie)
#### Post date: [March 14, 2026, 12:19pm UTC](https://forum.yunohost.org/t/paperless-doesnt-start/41144/16 "2026-03-14T12:19:08Z")

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Thanks! That helps a lot.

In my case it was Postgres 13 and 16:

```bash
pg_lsclustersVer Cluster Port Status Owner Data directory Log file13 main 5432 online postgres /var/lib/postgresql/13/main /var/log/postgresql/postgresql-13-main.log16 main 5433 online postgres /var/lib/postgresql/16/main /var/log/postgresql/postgresql-16-main.log

```

Sad that the migration doesn’t do the job, i tried:

```bash
yunohost tools migrations run postgresql_13_to_15 --force-rerun

```

But it just ran into an error. Think it’s not so robust to handle my mixed case.

I doesn’t used your idea with manually SQL dump/restore. What i have done was:

1. Backup of all Apps that still used postgres 13
2. Deinstall these apps
3. Stop the v13 cluster
4. changed the port of v16
5. deinstalled v13
6. restore the Apps

After this, all apps used v16 and i can apply the missing app updates.

EDIT: One missing part seems to change the postgres version in `/etc/postgresql-common/user_clusters`

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