Update lvtk-plugin-1 missing

Hi all.
During the Software Update I got this:

Checking for program ‘pkg-config’ : /usr/bin/pkg-config
Checking for ‘lv2’ : yes
Checking for ‘lvtk-plugin-1’ : not found
The configuration failed
(complete log in /home/pi/zynthian-sw/plugins/ams-lv2/build/config.log)
The project was not configured: run “waf configure” first!
The project was not configured: run “waf configure” first!
The project was not configured: run “waf configure” first!
ln: failed to create symbolic link ‘/zynthian/zynthian-plugins/lv2/mod-ams.lv2’: File exists

Please, could anybody explain to me whats happened?

Thanks
Roman