Getting the error when I execute Chef Task on the instance

Just getting Task execution failed messages in the instance history even provided chef server, environment, run list & node name. Bootstrap was also executed after provisioned.

Morpheus Error Message:
2022-05-18_04:42:51.01498 [2022-05-18 04:42:51,014] [RxCachedThreadScheduler-158] INFO c.m.t.ChefTaskService - chefResults: [success:false, configId:chef-client-2, msg:unable to generate bootstrap details: java.lang.NullPointerException: Cannot invoke method split() on null object]