Hi,
Since I have no reply from the support, I try my luck there.
I moved from J2.5 to J3.4.4. Everything works great, the custom field is setup but when I want to add it to the product page, each time I save, my parameters are removed.
In the Global Configuration I put "Error Reporting" to "development" and here is the error in the backend on the page product :
QuoteStrict Standards: Declaration of plgVmCustomSt42_download::display3rdInfo() should be compatible with vmPlugin::display3rdInfo($intro, $developer, $contactlink, $manlink) in /var/www/vhosts/ip-50-63-136-92.ip.secureserver.net/steditions_new/J3/plugins/vmcustom/st42_download/st42_download.php on line 959
Database table structure is up to date.
I uninstall, reinstall the VM component and the plugin, but the error still there.
Don't know if I have to buy the product again to have support.
Hope you can help.