I'm using MZ and I keep getting this error and so far I cant chang eit, database max skill number is 2000 and I wonder if someone oculd give me any assistanceView attachment 183933View attachment 183934
And the second error shows that Wars Arts I doesn't exist in the techtree, meaning the json cannot create the node War Arts II since it needs this parent (be careful of the writing of your parents)
Lastly, the 'IconIndex' issue can refer to either a node on which you erase the icon id instead of putting 0, or the plugin parameters (sometimes leaving a plugin paramter to blank can lead to an error reading from the json since it needs at least 0 as entry to correctly execute the code)
All of this is based on what I've experience on the plugin, I don't know javascript at all neither the MZ version of the plugin, so what I advice might not work. Keep a backup version in case the above makes things worst :aswt: