terraform instance start has failed

Failure occurred while waiting for instance.

Instance task failed (details: terraform plan failed (exit_code: Some(1), stderr: error: value for undeclared variable a variable named "instance_name" was assigned on the command line, but the root module does not declare a variable of that name. to use this value, add a "variable" block to the configuration. error: no value for required variable on terraform.tf line 13: 13: variable "instance_type" { the root module input variable "instance_type" is not set, and has no default value. use a -var or -var-file command line argument to provide a value for this variable. ))

Cannot read properties of undefined (reading 'mode')

Not all the required inputs are provided for the 'stop' mode