Have I searched the tickets before posting? Yes
Have I searched the forum before posting? Yes
Have I read the documentation before posting (which pages?)? No
Joomla! version: 3.4.1
PHP version: 5.5
MySQL version: MariaDB 5.5
Matukio version: 3.0.8
Direct link to the page that shows the issue: http://www.sopza.com/new
Description of my issue:
HI Yves.
I wan to update Matukio v version 3.0.8 to 5.1.3, but I have still errors during unpdate.
First error is:matukio Duplicate entry '9' for key 'PRIMARY' SQL=INSERT INTO table xxx_matukio_recurring
I if I try to repeat installation process I have som errors with templates there.
I tried several steps including delete of whole content of tabel xxx_matukio_recurring, but after upgrade threre is just blank screen now

Can you please support me?
I created you super-admin account with name yves and your e-mail adress.
Thank you for your support.
Kind regards
Michal