My current forum version is 2.15. I have download the full PHP version of 2018.4.11. However, I got the error message “An error occurred trying to update the database
Table ‘phpbb_admin_nav_module’ already exists” while trying to install the PHP new version.
Here are the steps that I did:
- backup my database.
- backup the whole old forum.
- delete the old forum files on my server.
- copy the newer version into my server.
- change mod for .config file.
- run mywebsite.com/install/install.php
- fill in the old database info.
—> give me the error “An error occurred trying to update the database. Table ‘phpbb_admin_nav_module’ already exists”
However, If I try to connect to a new database, the installation is fine, but it will give me error “can’t recognize one field in php-categories table.” in the restore database step.