Question JInstaller: :Install: SQL-Fehler Duplicate entry 'com_kunena.reply-' for key 'PR

Hi Team,

I upgraded from Joomla 3 to J4. I could install several extensions without probs. Just with Kunena it went wrong. In Joomla 3 before upgrade I use V 5.2. and I uninstalled Kunena as described. Now in Joomla 4 I wanted to install V6 but the error "JInstaller: :Install: SQL-Fehler Duplicate entry 'com_kunena.reply-' for key 'PRIMARY'" comes. Server should be ok. What to do?
thnx in advance

maybe this helps

"Remove the kunena entries in the table #__mail_templates "
www.kunena.org/forum/k-6-0-support/16466...-duplicate-entry-com

Hi Leen,
there is no table like this im my database. see  www.loom.com/share/0284e0294d5c42b0a8a8bfba26c3df1b

if it is not there with filters mail  then it must be something else
might be useful to have a Create and Post Configuration Report
www.kunena.org/docs/en/manual/backend/to...report-configuration

nice idea, but in my dashboard > components there is no Link to any Kunena content. I could install the kunena language pack though.

It seems that something went wrong during the migration from Joomla 3 to Joomla 4 when the #__mail_templates table is missing. It seems, the missing table trigger the error.
Is the error displayed in the Backend -> System -> Database? If so, try the repair option.

Hi Rich,
yes i checked database. it says there are no errors and it has current state.
Shall I overwride all joomla core files again via ftp? ( with fielzilla for ex.)

I do not think that this will fix the error when a table is missing in the database. If you have a backup of your old installation, it would be best to repeat the migration from Joomla 3 to Joomla 4.
docs.kunena.org/en/basics/upgrade/upgrade-k6-0

no way to to migration again, I have invested in the whole website already 3 full days after migration. see j414.psychoanalyse-muenchen.de/
I would go mad. How else can I fix it? Can I not just import tables? Which one exactly?
(By the way everything else works except Kunena)

difficult but if you search for kunena in System Dashboard > Extensions: Manage what does it show?

ps
And what you might try (but I would first do this locally with Wamp or Xampp) is to export all your prefix_kunena from your database to your pc and then save it then remove everything from kunena from the database and then see if you can install kunena. if that works you might remove all kunena from database again and then import the saved kuena.sql