Variables everything runs successfully as configured, but the plugin throws an error.
Summary
The configuration runs successfully as expected, but the plug-in keeps throwing errors. The target entity always exists, and the damage caused by reading variables is also set according to the configuration.
Steps to reproduce
Current behavior
Every time the skill is triggered, the plug-in will report an error, but the execution result is fine.
Intended correct behavior
It seems like the plugin shouldn't throw an error report as there are no issues executing.
Server log file