Fix/986 (#990)

* throw new NonFatalTask error on play file not found

* linting

* make SpeechCredentialError subclass of NonFatalTask error

* cleanup

* Update action-hook-delay.js

* bump fsmrf version

* linting and package-lock

* Update package-lock.json

* update error

* only throw on fs error "File not found"

* add alert

* update time-series dep

* Update package-lock.json

* linting

* Update play.js

* remove stack trace from error message

* fix error formatting

lib/session/call-session.js

@@ -33,7 +33,7 @@ const BackgroundTaskManager = require('../utils/background-task-manager');
 const dbUtils = require('../utils/db-utils');
 const BADPRECONDITIONS = 'preconditions not met';
 const CALLER_CANCELLED_ERR_MSG = 'Response not sent due to unknown transaction';
-
+const { NonFatalTaskError} = require('../utils/error');
 const sqlRetrieveQueueEventHook = `SELECT * FROM webhooks 
 WHERE webhook_sid = 
 (
@@ -1092,6 +1092,8 @@ class CallSession extends Emitter {
         this.currentTask = null;
         if (err.message?.includes(BADPRECONDITIONS)) {
           this.logger.info(`CallSession:exec task #${stackNum}:${taskNum}: ${task.name}: ${err.message}`);
+        } else if (err instanceof NonFatalTaskError) {
+          this.logger.error(err, `Error executing task  #${stackNum}:${taskNum}: ${task.name}`);
         }
         else {
           this.logger.error(err, `Error executing task  #${stackNum}:${taskNum}: ${task.name}`);