Title: Multicurrency (Currency Switcher) – Rest API & Loopback errors
Last modified: October 4, 2020

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# Multicurrency (Currency Switcher) – Rest API & Loopback errors

 *  [Johnny N](https://wordpress.org/support/users/johnnyfit/)
 * (@johnnyfit)
 * [5 years, 8 months ago](https://wordpress.org/support/topic/multicurrency-currency-switcher-rest-api-loopback-errors/)
 * Activating Multicurrency (Currency Switcher) causes two critical errors to appear
   in Site Health Tools. Turning the module off clears these errors up on refresh:
 * The REST API encountered an error
    The REST API is one way WordPress, and other
   applications, communicate with the server. One example is the block editor screen,
   which relies on this to display, and save, your posts and pages.
 * The REST API request failed due to an error.
    Error: [] cURL error 28: Operation
   timed out after 10001 milliseconds with 0 bytes received
 * Your site could not complete a loopback request
    Loopback requests are used to
   run scheduled events, and are also used by the built-in editors for themes and
   plugins to verify code stability.
 * The loopback request to your site failed, this means features relying on them
   are not currently working as expected.
    Error encountered: (0) cURL error 28:
   Operation timed out after 10001 milliseconds with 0 bytes received

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 * 0 replies
 * 1 participant
 * Last reply from: [Johnny N](https://wordpress.org/support/users/johnnyfit/)
 * Last activity: [5 years, 8 months ago](https://wordpress.org/support/topic/multicurrency-currency-switcher-rest-api-loopback-errors/)
 * Status: not resolved