Diagnostics module will contain prefix number in their name "00_"
Similar to turris/reforis/reforis-diagnostics#6 (closed)
Error page from Foris:foris-error__1_.html
When I removed the number prefix, it worked.
It should be fixed by turris/foris-controller/foris-controller-diagnostics-module#2 (closed)
Edited by Martin Matějek