Error app in context "username"doesn't exist, can't verify user data.

[stratege1401]

Steps to reproduce

1. Create user. Log one time that user.
2. As admin, delete user.
3. Log out.
4. Log in. As admin, check loggin.

Expected behaviour

Shouldn't verify user data if user was delete.

Server configuration

N 13.0.0
4.9.0-5-amd64 #1 SMP Debian 4.9.65-3+deb9u2 (2018-01-04)
/ apache 2.4.29 / php 7.0.27 / 10.1.26-MariaDB / mysqlnd 5.0.12 / phpadmin 4.6.6deb4 /
/ Redis server v=3.2.6 / HTTP2 / letsencrypt CA / Fail2ban 0.10.2 / curl 7.52.1-5

reproduce twice:

Error | no app in context | rod3 doesn't exist, can't verify user data. | 2018-02-16T20:49:05+0100
Error | no app in context | rod2 doesn't exist, can't verify user data. | 2018-02-16T20:38:35+0100

[GitHubUser4234]

Having the same issue in Nextcloud 13.0.2, seemingly triggered by OC\Settings\BackgroundJobs\VerifyUserData cron job. Is this actually a real error or could it also be of log level 0 or 1?

[stratege1401]

Checked #8402 against NC13.0.4 : was not able to reproduced bug.

One important change in my config between feb16 and today, i have update /etc/php/7.0/apache2/php.ini to set memory_limit from 128M to 6144M in concordance with my RAM and restarted apache2

Could anyone tested this again, so we could move forward.

[MorrisJobke]

Fix is in #9965