# Error Message when running API GET Request

**URL:** <https://forum.katalon.com/t/error-message-when-running-api-get-request/44653>\
**Category:** Web Testing\
**Tags:** katalon-studio\
**Created:** [June 17, 2020, 12:29pm UTC](https://forum.katalon.com/t/error-message-when-running-api-get-request/44653 "2020-06-17T12:29:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aplui](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@aplui](https://forum.katalon.com/u/aplui)\
**Post date:** [June 17, 2020, 12:29pm UTC](https://forum.katalon.com/t/error-message-when-running-api-get-request/44653/1 "2020-06-17T12:29:50Z")

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Hi,

I’m trying to perform a GET request using an RESTful object in Katalon. Up to a few weeks ago, it worked fine but it seems it broke in the meantime, as I can’t get a response. Instead, I get the following error message:

```
javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No X509TrustManager implementation available
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:394)

```

Strangely enough my friend can get a response from the API using Katalon on his system, so what’s happening here?

---

<div class="post-metadata">

**Author:** ![Russ\_Thomas](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/russ_thomas/32/11884_2.png) [@Russ\_Thomas](https://forum.katalon.com/u/Russ_Thomas)\
**Post date:** [June 17, 2020, 4:07pm UTC](https://forum.katalon.com/t/error-message-when-running-api-get-request/44653/2 "2020-06-17T16:07:15Z")

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> [@aplui](#):
>
> No X509TrustManager implementation available

I don’t know what’s happening there but this search may help:

> **[No X509TrustManager implementation available at DuckDuckGo](https://duckduckgo.com/?t=ffcm&q=No%2BX509TrustManager%2Bimplementation%2Bavailable&ia=web)**
>
> DuckDuckGo. Privacy, Simplified.