plugin stopped to track, no piwik code is generated

There’s no preview of the code, I have tried combining all the options and it simply doesn’t show, the code is also not found in the rendered html page, using last version.

Note: piwik site is in a different server machine, I use the url to it (it worked in the past)

Thanks
Thanatermesis

https://ww.wp.xz.cn/plugins/wp-piwik/