I had a problem with the var "inst_msg". This is what was written in the log file:
can't read "inst_msg": no such variable
while executing
"lang::util::localize ${inst_msg}"
...
So I removed line 40 in file www/site-master-kelp.adp and now it works fine
40c40
<
---
@inst_msg;noquote@
Congratulations Giarcarlo for the great theme and thank you Orzenil for your instructions.