Title: Rest api error and loopback
Last modified: March 8, 2021

---

# Rest api error and loopback

 *  Resolved [Brian Harlo](https://wordpress.org/support/users/brian86mail/)
 * (@brian86mail)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/)
 * Hello
 * I have been troubleshooting after getting REST API error (error 28) and a loopback
   request error – resulting in various error around my installation with the most
   serious being, that no emails were sent to me, through various contact formula
   on page.
 * After disabling all plugins, it removed the error. I started by trying to activate
   the booked plugin, which resulted in the errors returning. (Without any other
   plugins being active)
 * I have never had issue with the plugin before, so it might be related to the 
   current version (2.3).
 * Help needed please!
    Best regards Brian
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Frest-api-error-and-loopback%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [wpdevart](https://wordpress.org/support/users/wpdevart/)
 * (@wpdevart)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/#post-14153590)
 * Hi dear user.
 * You are using an old version, so why you don’t update it?
 * The new version should fix the error.
 * Thanks.
 *  Thread Starter [Brian Harlo](https://wordpress.org/support/users/brian86mail/)
 * (@brian86mail)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/#post-14153641)
 * Thanks for the reply.
    There is no new update available from within the admin
   panel.
 * Where would you suggest going from here?
 * Thanks for your time 🙂
    Brian
    -  This reply was modified 5 years, 3 months ago by [Brian Harlo](https://wordpress.org/support/users/brian86mail/).
 *  Plugin Author [wpdevart](https://wordpress.org/support/users/wpdevart/)
 * (@wpdevart)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/#post-14156284)
 * Hi dear user.
 * That’s strange, our plugin current version is 2.7.5 – [https://wordpress.org/plugins/booking-calendar](https://wordpress.org/plugins/booking-calendar).
 * Can you check our plugin page, maybe we are missing something?
 * Thanks.
 *  Plugin Author [wpdevart](https://wordpress.org/support/users/wpdevart/)
 * (@wpdevart)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/#post-14170795)
 * Hi dear user.
 * We checked your website and as we see you are using another plugin(it’s not our
   plugin), so we will close this topic.
 * Thanks.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Rest api error and loopback’ is closed to new replies.

 * ![](https://ps.w.org/booking-calendar/assets/icon-128x128.png?rev=1307202)
 * [Booking calendar, Appointment Booking System](https://wordpress.org/plugins/booking-calendar/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/booking-calendar/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/booking-calendar/)
 * [Active Topics](https://wordpress.org/support/plugin/booking-calendar/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/booking-calendar/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/booking-calendar/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [wpdevart](https://wordpress.org/support/users/wpdevart/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/rest-api-error-and-loopback/#post-14170795)
 * Status: resolved