Migration from 6.3.3 to 8.5.3

I’m trying to use my Grafana 6.3.3 templates on a new machine with Grafana 8.5.3, but they don’t work, there are a lot of errors in the code of these templates. I’m not a programmer so I don’t know where to look or what to look for…
The json codes are different right? Is there any tool to convert templates between these versions?

short answer is no. The templating engine has undergone considerable development between 6.3.3 and now, so this doesn’t surprise me :sob: