how to fix this error

[YZ_10818805]

wt.system.err wcadmin - Caused by: wt.workflow.definer.InvalidEventException: null event

wt.system.err wcadmin - at wt.workflow.expr.WfExpression721.executemethod_1(WfExpression721.java:61)

wt.system.err wcadmin - ... 19 more

root wcadmin - Queue entry number: 222 java.lang.reflect.InvocationTargetException

[Rocket_Max · Accepted solution]

There is an exception in the workflow expression, check the customization code

[YZ_10818805]

thanks, customization team is currently investigating