SQL error Column already exists: 1060 Duplicate column name 'slug' when performing upgrade about docker-bookstack

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[Roxedus]

Are you on a up-to-date version of the image? ref BookStackApp/BookStack#2710

[wouterVE]

Thanks for your link, I deleted the column slug from my database (as suggested here) & no errors after updating now:

[s6-init] making user provided files available at /var/run/s6/etc...exited 0.
[s6-init] ensuring user provided files have correct perms...exited 0.
[fix-attrs.d] applying ownership & permissions fixes...
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts...
[cont-init.d] 01-envfile: executing... 
[cont-init.d] 01-envfile: exited 0.
[cont-init.d] 10-adduser: executing... 

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GID/UID
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User uid:    1000
User gid:    1000
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[cont-init.d] 10-adduser: exited 0.
[cont-init.d] 20-config: executing... 
[cont-init.d] 20-config: exited 0.
[cont-init.d] 30-keygen: executing... 
using keys found in /config/keys
[cont-init.d] 30-keygen: exited 0.
[cont-init.d] 50-config: executing... 
App Key found - setting variable for seds
Running config - db_user set
/var/run/s6/etc/cont-init.d/50-config: line 86: warning: command substitution: ignored null byte in input
/var/run/s6/etc/cont-init.d/50-config: line 86: warning: command substitution: ignored null byte in input
Migrating: 2021_03_08_215138_add_user_slug
Migrated:  2021_03_08_215138_add_user_slug (0.46 seconds)
[cont-init.d] 50-config: exited 0.
[cont-init.d] 99-custom-files: executing... 
[custom-init] no custom files found exiting...
[cont-init.d] 99-custom-files: exited 0.
[cont-init.d] done.
[services.d] starting services
[services.d] done.