# deprecated error getting while mautic rest api authentication

**URL:** https://forum.mautic.org/t/deprecated-error-getting-while-mautic-rest-api-authentication/9134
**Category:** Development
**Created:** [August 1, 2017, 5:54am UTC](https://forum.mautic.org/t/deprecated-error-getting-while-mautic-rest-api-authentication/9134 "2017-08-01T05:54:28Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![sameer](https://avatars.discourse-cdn.com/v4/letter/s/bbce88/32.png) [@sameer](https://forum.mautic.org/u/sameer)
#### Post date: [August 1, 2017, 5:54am UTC](https://forum.mautic.org/t/deprecated-error-getting-while-mautic-rest-api-authentication/9134/1 "2017-08-01T05:54:28Z")

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Hello members/moderator,  
  
  
  
I am getting below error while executing below code for authentication.  
  
  
  
$auth = ApiAuth::initiate($settings);  
  
$auth-\>validateAccessToken();  
  
  
  
"Looks like I encountered an error (error #500). If I do it again, please report me to the system administrator! (`error` is deprecated as of 2.6.0 and will be removed in 3.0. Use the `errors` array instead.)  
  
  
  
Please help with some solution.  
  
  
  
thanks in advance

---

<div class="post-metadata">

### Author: ![sameer](https://avatars.discourse-cdn.com/v4/letter/s/bbce88/32.png) [@sameer](https://forum.mautic.org/u/sameer)
#### Post date: [August 1, 2017, 5:54am UTC](https://forum.mautic.org/t/deprecated-error-getting-while-mautic-rest-api-authentication/9134/2 "2017-08-01T05:54:28Z")

</div>

Hello members/moderator,

I am getting below error while executing below code for authentication.

$auth = ApiAuth::initiate($settings);  
$auth-\>validateAccessToken();

"Looks like I encountered an error (error #500). If I do it again, please report me to the system administrator! (`error` is deprecated as of 2.6.0 and will be removed in 3.0. Use the `errors` array instead.)

Please help with some solution.

thanks in advance