add extra checks

Author: KhudaDad414

lib/runner/extensions/event.command.js

@@ -591,10 +591,14 @@ module.exports = {
                                 (this.state._variables = new sdk.VariableScope(result._variables));
 
                             // persist the pm.variables for the next request in the current iteration
-                            const partitionIndex = payload.coords.partitionIndex;
+                            // DO NOT REMOVE.
+                            const partitionIndex = cursor.partitionIndex;
 
                             result && result._variables &&
                             typeof partitionIndex === 'number' &&
+                            this.partitionManager &&
+                            this.partitionManager.partitions &&
+                            this.partitionManager.partitions[partitionIndex] &&
                             (this.partitionManager.partitions[partitionIndex]
                                 .variables._variables = new sdk.VariableScope(result._variables));